Incidents in country:
138 incidents catalogued
Home medical equipment provider AdaptHealth disclosed a material cybersecurity incident in which a social-engineering attack on a third-party contractor let a threat actor into its cloud systems and reach patient personal and health information.
Medical device maker Medtronic began notifying roughly 3.8 million people that their personal data was exposed when the ShinyHunters extortion group accessed its corporate IT systems in April 2026.
The U.S. Department of Homeland Security confirmed that hackers breached the Homeland Security Information Network, an unclassified platform used to share sensitive information with federal, state, local and private-sector partners.
Kubota North America said an unauthorised party had month-long access to its network in early 2026, reaching HR files with the personal data of employees and dependents.
Nissan's Americas operations disclosed that attackers exploiting a zero-day in Oracle PeopleSoft accessed sensitive data belonging to current and former employees in the United States, Canada, Mexico and Brazil.
Attackers compromised a third-party frontend vendor and injected malicious JavaScript into Polymarket's website, tricking users into approving fraudulent transactions and draining about $3 million.
Attackers began actively exploiting a critical unauthenticated server-side request forgery flaw in Cisco Unified Communications Manager, tracked as CVE-2026-20230, using the WebDialer service to write files and drop JSP webshells on enterprise telephony servers.
The National Association of Insurance Commissioners disclosed on 23 June 2026 that attackers exploited an Oracle PeopleSoft zero-day to access part of its environment, and by 25 June the extortion group ShinyHunters had published the stolen data online, claiming more than 3.1 terabytes.
Xsolis, a US healthcare AI vendor, disclosed that a January phishing attack exposed the personal and protected health information of nearly 1.4 million people.
A dormant API credential let attackers compromise competitive-intelligence platform Klue and harvest OAuth tokens for customers' connected apps, exfiltrating Salesforce records from firms including Huntress and Recorded Future in a supply-chain attack later tied to the Icarus extortion group.
Michigan's largest federally qualified health center, Cherry Health, posted a preliminary breach notice on 18 June 2026 after suspicious network activity detected in April triggered a days-long outage and the copying of patient and staff data, including Social Security numbers.
Nintendo of America confirmed that threat actors stole internal employee survey data from TinyPulse, a third-party HR engagement platform it used, after the SHADOWBYT3$ group claimed to have exfiltrated about 859 MB of data and demanded a US$2 million ransom — while stressing that Nintendo's own systems and customer data were not affected.
A breach at the third-party vendor that processes Texas hunting and fishing licence sales exposed the driver's licence numbers, passport numbers and contact details of more than three million Texans, though the state said Social Security numbers and financial data were not taken.
Imaging and materials company Eastman Kodak confirmed that an unauthorised third party temporarily accessed a limited amount of company data, after the ShinyHunters extortion gang listed Kodak on its dark-web leak site and claimed to hold more than 2.2 million records of customer and internal corporate data.
A dataset dubbed FortiBleed exposed valid Fortinet FortiGate VPN credentials — including plaintext passwords — for 73,932 firewall URLs across 194 countries, the product of a Russian-speaking crew that reused passwords from earlier breaches and infostealer logs rather than any new Fortinet vulnerability.
A hijacked contributor account was used to republish 144 packages in the popular @mastra AI-agent npm scope with a malicious typosquatted dependency, easy-day-js, that pulled down a cross-platform remote-access trojan and cryptocurrency stealer onto any developer machine or build system that installed them.
The ShinyHunters extortion gang published data it claims to have stolen from Madison Square Garden Sports — owner of the New York Knicks and Rangers — after the company missed a ransom deadline.
Google's Threat Intelligence Group disclosed that PRC-nexus actor UNC6508 spent more than a year inside U.S. and Canadian medical, academic and military-health research environments, compromising legacy REDCap servers, deploying custom INFINITERED malware and abusing Google Workspace email compliance rules to silently exfiltrate research and defense data.
Attackers stole a CDN API key from Awesome Motive and tampered with JavaScript served to the OptinMonster, TrustPulse and PushEngage WordPress plugins, silently creating rogue administrator accounts and planting backdoors on sites whose logged-in admins loaded the malicious code.
Socket's Threat Research Team uncovered a coordinated family of 152 new-tab 'live wallpaper' Chrome extensions, spread across 38 publisher accounts and three brands, that secretly logged user telemetry and laundered extension-generated visits into fake Google organic search traffic despite declaring they collected no data.
Sonatype researchers uncovered 'Atomic Arch,' a supply-chain campaign in which attackers adopted hundreds of orphaned Arch User Repository packages and rewrote their build scripts to install a malicious npm package that drops a Linux credential stealer with optional eBPF rootkit capabilities.
Ivanti patched a maximum-severity unauthenticated command-injection flaw in its Sentry mobile gateway that gives attackers root-level remote code execution, and within days real-world exploitation followed a public proof-of-concept, prompting CISA to add it to its Known Exploited Vulnerabilities catalog.
Researchers disclosed a Microsoft Defender privilege-escalation zero-day dubbed RoguePlanet (CVE-2026-47281) that abuses a race condition to redirect a SYSTEM-level file operation and hand a local attacker full SYSTEM access on fully updated Windows machines.
Oracle issued an emergency out-of-band alert after the ShinyHunters crew exploited a critical unauthenticated remote-code-execution zero-day in PeopleSoft PeopleTools to steal data from more than 100 organisations, most of them universities.
Google shipped an emergency Chrome update fixing CVE-2026-11645, a high-severity out-of-bounds memory flaw in the V8 engine that lets a crafted web page run arbitrary code and for which an exploit already exists in the wild.
ServiceNow disclosed that a misconfigured, unauthenticated REST API endpoint allowed actors to query data from hosted customer instances, an issue the company patched on 5 June but did not publish a (login-gated) advisory for until days later.
Attackers abused a verification flaw in Meta's AI-assisted Instagram account-recovery tool, High Touch Support, to trigger password resets and hijack 20,225 accounts before Meta detected and disabled the tool.
After negotiations stalled, the ShinyHunters extortion crew published data it claimed to have stolen from Baker Distributing's Salesforce and SharePoint systems, exposing more than 100,000 customer email addresses and contact records.
Cisco warned that an unpatched high-severity zero-day in Catalyst SD-WAN Manager (CVE-2026-20245) was being actively exploited to execute arbitrary commands and escalate to root, after Mandiant reported a limited number of real-world attacks.
A self-replicating supply-chain worm dubbed Miasma compromised 73 repositories across four Microsoft GitHub organisations, planting configuration files that harvested cloud and developer credentials when the projects were opened in AI coding agents such as Claude Code and Cursor.
Researchers disclosed IronWorm, a Rust-based, self-propagating infostealer that compromised 36 npm packages, stealing developer and CI secrets and republishing trojanized packages using stolen npm publishing credentials.
Dental benefits administrator DentaQuest confirmed a network breach after the extortion group ShinyHunters leaked roughly 234 GB of stolen data, exposing personal, identity, and health-insurance information tied to about 2.6 million accounts.
Google's June 2026 Android security update fixed 124 vulnerabilities, including CVE-2025-48595, an actively exploited integer-overflow flaw in the Android Framework that lets a local attacker escalate privileges without user interaction.
The Nitrogen ransomware group claimed on its dark-web leak site that it had stolen over 11 million files from Foxconn's North American facilities, including confidential information belonging to customers Apple, Dell, Google, Intel, Nvidia, and Sony. Foxconn said affected factories were resuming normal production.
ShinyHunters exploited Canvas's Free-For-Teacher account programme to exfiltrate 3.65 TB of data spanning approximately 275 million users across nearly 9,000 schools — names, email addresses, student IDs, and some private messages between students and teachers. Instructure reportedly paid the ransom and the data was destroyed.
Around 14 March 2026, US ignition-interlock provider Intoxalock was hit by a DDoS-style flood that knocked its servers offline for about a week, disrupting calibration and account services and leaving an estimated 150,000 court-ordered drivers across 46 states unable to start their cars.
Iran-linked hackers breached Los Angeles' transit agency LA Metro in March 2026, stealing at least 700 GB of internal data and disrupting passenger-information and TAP fare systems.
The Iranian state-linked group Handala compromised Stryker's Microsoft Intune administrator account and used the endpoint-management tool to wipe more than 200,000 servers, mobile devices, and corporate endpoints across 79 countries — bringing operations at one of the world's largest medical-device makers to a halt.
In November 2025, the Everest ransomware group claimed to have stolen 343GB of data from apparel maker Under Armour. After no ransom was paid, customer data was leaked in January 2026, exposing roughly 72.7 million unique email addresses with names, dates of birth, genders, locations and purchase histories. This is a separate incident from the 2018 MyFitnessPal breach.
Suspicious network activity at Yale New Haven Health led to the largest U.S. healthcare data breach of 2025: 5.5 million patients had names, contact details, dates of birth, medical record numbers, and Social Security numbers stolen. The health system later agreed to an $18 million class-action settlement.
In October 2024, retailer Hot Topic suffered a data breach that exposed 57 million unique email addresses. The impacted data also included physical addresses, phone numbers, purchases, genders, dates of birth and partial credit data containing card type, expiry and last 4 digits.
China-linked Salt Typhoon infiltrated at least nine U.S. telecom providers — Verizon, AT&T, T-Mobile, Spectrum, Lumen, Consolidated, Windstream — including the CALEA lawful-intercept systems used for court-authorised wiretaps. Metadata for over a million users was exposed; the U.S. Treasury sanctioned a linked PRC contractor.
In September 2024, the Internet Archive's authentication database — 31 million records with emails, screen names, and bcrypt password hashes — was stolen, followed by a website defacement and a wave of DDoS attacks.
RansomHub gained access to Halliburton's systems, prompting the oil-services giant to take infrastructure offline. The incident delayed invoicing and purchase orders, and Halliburton booked a $35 million loss in its SEC filings.
A breach of data broker National Public Data (Jerico Pictures) exposed a database of roughly 2.9 billion records containing names, Social Security numbers, dates of birth, and addresses scraped from public and non-public sources, triggering a wave of lawsuits and the company's bankruptcy.
AT&T disclosed that attackers used credentials stolen by infostealers to authenticate into its Snowflake cloud-data-warehouse tenant — which lacked MFA — and exfiltrated call and text metadata covering nearly all 110 million AT&T wireless customers.
BlackSuit operators encrypted CDK Global's dealer-management platform, knocking ~15,000 North American car dealerships offline for nearly two weeks. A second attack hit on day two of recovery. Industry losses estimated at over $1 billion; CDK reportedly paid a $25 million ransom.
In June 2024, Advance Auto Parts confirmed they had suffered a data breach which was posted for sale to a popular hacking forum. Linked to unauthorised access to Snowflake cloud services, the breach exposed a large number of records related to both customers and employees.
A threat cluster tracked as UNC5537 / ShinyHunters used credentials harvested by infostealer malware to log into ~160 Snowflake customer tenants that lacked MFA. Victims included AT&T, Ticketmaster, Santander, LendingTree, Advance Auto Parts, Neiman Marcus, and Bausch Health. Ticketmaster alone exposed data for ~560 million users.
Black Basta ransomware crippled Ascension, one of the largest U.S. health systems, after an employee downloaded a malicious file. The attack forced 140 hospitals onto manual operations for weeks, diverted ambulances, and ultimately exposed the data of nearly 5.6 million patients.
In 2024, the luxury retailer Neiman Marcus had data stolen from its Snowflake cloud environment via stolen credentials. The company reported about 64,000 individuals to regulators, but the leaked dataset exposed roughly 31 million unique email addresses along with names, contact details and gift-card numbers.
A multi-year social-engineering campaign by a maintainer persona named 'Jia Tan' planted a hidden SSH backdoor in the XZ Utils compression library (liblzma) versions 5.6.0 and 5.6.1, scoring CVSS 10.0 — caught by chance days before it could reach stable Linux releases worldwide.
ALPHV/BlackCat compromised Change Healthcare via Citrix portal lacking MFA, paralyzed U.S. prescription claims for weeks, and exfiltrated data on an estimated 100 million people.
Cactus ransomware operators hit Schneider Electric's Sustainability Business division, taking the Resource Advisor consulting platform offline and exfiltrating approximately 1.5 TB of data — including passport scans and signed NDAs from customers like Hilton, PepsiCo, and Walmart.
LockBit ransomware disrupted the U.S. broker-dealer arm of the world's largest bank, ICBC, jamming settlement of over $9 billion in U.S. Treasury trades. Bank staff sent critical settlement details by USB stick via a messenger across Manhattan. $62 billion of Treasuries failed to deliver in one day.
LockBit operators exploited the Citrix Bleed vulnerability (CVE-2023-4966) to enter Boeing's parts and distribution business. Boeing did not pay; LockBit leaked roughly 45 GB of data, including Citrix logs, email backups, supplier lists, and 2020 pricing data.
A threat actor used a stolen service-account credential — exposed via an employee's personal Google account — to access Okta's customer support case-management system, reading HAR files that contained session tokens and enabling session-hijacking against customers including 1Password, BeyondTrust and Cloudflare.
Attackers used credentials reused from prior breaches to access 23andMe accounts, then leveraged the 'DNA Relatives' feature to scrape ancestry and genetic profile data on 6.9 million users from compromised relatives' connections.
Scattered Spider vished an MGM IT-desk agent, gained Okta admin, and let ALPHV detonate ransomware. Casinos went offline for ten days; the loss to MGM exceeded $100 million.
Scattered Spider impersonated a Caesars employee on a call to a third-party IT support vendor and convinced the vendor to grant Okta credentials, then exfiltrated customer loyalty data including SSNs and driver's licences. Caesars paid roughly $15 million ransom; the FBI later froze a substantial portion of the funds with Chainalysis assistance.
Cl0p exploited CVE-2023-34362 in Progress Software's MOVEit Transfer to mass-extort over 2,700 organizations, including the BBC, British Airways, and the U.S. Department of Energy.
China-based Storm-0558 forged authentication tokens using a stolen Microsoft consumer signing key and read email at approximately 25 organisations — including the US State Department, the Department of Commerce, and the U.S. Ambassador to China. The 'cascade of errors' that enabled it became a defining case for cloud-provider key custody.
North Korea-linked actors trojanized the 3CXDesktopApp softphone client, distributing the SmoothOperator malware through a legitimately-signed update to a customer base of over 600,000 organizations — the first documented cascading software supply-chain compromise, itself enabled by a prior breach of trading software X_TRADER.
A teenage Lapsus$ member breached Rockstar Games' internal Slack and developer systems via social engineering, then leaked roughly 90 in-development clips of the unreleased Grand Theft Auto VI — one of the largest leaks in video-game history.
An 18-year-old affiliated with Lapsus$ socially engineered an Uber contractor, defeated MFA through an hour-long push-bombing campaign, then found hardcoded admin credentials on an internal share that unlocked Uber's AWS, G-Suite, Slack, and HackerOne dashboards.
An August 2022 source-code theft from one LastPass developer's laptop chained into a November 2022 compromise of a DevOps engineer's personal computer — yielding access to backups of customer password vaults. Federal investigators later linked LastPass-stolen vaults to a $150 million crypto heist.
Lazarus operators compromised five of nine Ronin validator nodes and forged withdrawal signatures, draining 173,600 ETH and 25.5 million USDC (~$625M) — the largest cryptocurrency theft on record at the time.
The Lapsus$ extortion group compromised a laptop belonging to a support engineer at Okta subprocessor Sitel, gaining a 25-minute window of access in January 2022 that touched two customer tenants. The breach only became public when Lapsus$ posted screenshots in March.
A trivially exploitable remote code execution flaw in Apache Log4j 2, the ubiquitous Java logging library, scored a maximum CVSS 10.0 and exposed hundreds of millions of devices and applications worldwide to instant takeover via a single crafted log string.
A server misconfiguration exposed Twitch's entire Git repository to an anonymous attacker, who leaked 125 GB of data — the full source code with commit history, internal tools, and three years of creator payout figures — as a torrent on 4chan.
A dataset dating to August 2021 — names, addresses, phone numbers, and encrypted SSNs and dates of birth — resurfaced in March 2024 and was leaked for free, with AT&T eventually confirming ~73 million current and former customers were affected.
A 21-year-old American living in Turkey, John Binns, claimed to have hacked T-Mobile via an exposed GGSN router and exfiltrated personal data on 76.6 million current, former, and prospective customers.
REvil affiliates exploited a SQL injection zero-day in Kaseya's VSA remote-management platform to push ransomware to ~60 MSPs and through them to ~1,500 downstream organisations. The largest supply-chain ransomware attack on record.
REvil affiliates encrypted the world's largest meat processor, shutting down beef and pork plants across the U.S., Canada, and Australia. JBS paid an $11 million ransom — one of the largest publicly-confirmed ransomware payments at the time.
A reused VPN password let DarkSide encrypt Colonial Pipeline's billing systems. The operator shut down 5,500 miles of fuel pipeline for six days, paid $4.4M, and triggered a federal emergency.
Data on 533 million Facebook users from 106 countries — including phone numbers, Facebook IDs, full names, locations, birthdates, and some email addresses — was posted free on a low-level hacking forum. The data had been scraped via a contact-importer flaw Facebook patched in 2019.
China-linked group Hafnium chained four Exchange Server zero-days (ProxyLogon) to plant web shells and steal email; after Microsoft's emergency patch, mass exploitation by multiple groups compromised an estimated 60,000+ organisations worldwide.
In early 2023, over 200M records scraped from Twitter appeared on a popular hacking forum. The data was obtained sometime in 2021 by abusing an API that enabled email addresses to be resolved to Twitter profiles.
Russian SVR operators trojanized SolarWinds Orion build infrastructure, distributing a backdoored update to 18,000 customers including the U.S. Treasury, Commerce, DHS, State, and Energy departments. The defining state cyberespionage operation of the decade.
In late 2020, the Japanese family photos website Famm suffered a data breach that subsequently exposed 1.3M customer records, including 535k unique email addresses. Impacted data also included names, dates of birth, genders and passwords stored as SHA-256 hashes.
In October 2020, a researcher disclosed that Gravatar's profile API could be enumerated without rate limiting. 167 million names, usernames, and email-hash records were scraped, and 114 million of the MD5 hashes were cracked to reveal email addresses.
Evil Corp deployed the WastedLocker ransomware against Garmin, taking flyGarmin aviation services, Garmin Connect, and inReach satellite messaging offline for five days. Garmin paid an estimated $10M ransom despite OFAC sanctions on Evil Corp.
Attackers used phone spear-phishing against Twitter employees to reach an internal admin 'agent' tool, hijacked 130 high-profile accounts including Obama, Musk, Bezos, and Apple, and posted a Bitcoin-doubling scam that netted roughly $118,000.
In April 2020, the custom printed apparel website Teespring suffered a data breach that exposed 8.2 million customer records. The data included email addresses, names, geographic locations and social media IDs.
As pandemic lockdowns drove Zoom usage to record highs, over 500,000 Zoom account credentials harvested via credential stuffing were sold or given away on the dark web, while open meetings were hijacked in a wave of disruptive 'zoombombing' incidents.
In September 2019, the hacker Gnosticplayers breached game developer Zynga, accessing data for nearly 173 million Words With Friends and Draw Something players. Exposed data included emails, usernames, phone numbers, and salted SHA-1 password hashes.
Former AWS engineer Paige Thompson exploited a misconfigured Web Application Firewall to extract personal data on roughly 106 million Capital One credit-card applicants and customers from S3.
An insecure direct object reference (IDOR) flaw on First American Financial's website exposed roughly 885 million title-insurance and mortgage documents — including Social Security numbers, bank account details, and driver's-license images — dating back to 2003, accessible to anyone without authentication.
A 87GB aggregated credential dump posted to the MEGA cloud service exposed 772.9 million unique email addresses and 21.2 million unique passwords, assembled from thousands of prior breaches to fuel credential-stuffing attacks at industrial scale.
The question-and-answer platform Quora disclosed that an unauthorized third party had accessed the data of approximately 100 million users, including names, email addresses, salted-and-hashed passwords, and imported contact and demographic data.
The video-messaging app Dubsmash was breached in December 2018, exposing roughly 162 million accounts with email addresses, usernames and PBKDF2 password hashes that later surfaced for sale on the Dream Market dark-web bazaar via the broker GnosticPlayers.
Chinese state-attributed operators sat undetected on Starwood's guest reservation database from 2014, surviving Marriott's 2016 acquisition. Disclosed 2018: 500 million guest records exposed, including 5.25 million unencrypted passport numbers.
In mid-2018, the fashion shopping site HauteLook was among a raft of sites that were breached and their data then sold in early-2019. The data included over 28 million unique email addresses alongside names, genders, dates of birth and passwords stored as bcrypt hashes.
Sales-engagement startup Apollo left a database of 9 billion data points and over 200 million contact records exposed without a password in 2018; a subset of 126 million unique email addresses was loaded into Have I Been Pwned after researcher Vinny Troia found it.
In July 2018, the cloud-based video making service Animoto suffered a data breach. The breach exposed 22 million unique email addresses alongside names, dates of birth, country of origin and salted password hashes.
In July 2018, the social bookmarking and sharing service ShareThis suffered a data breach. The incident exposed 41 million unique email addresses alongside names and in some cases, dates of birth and password hashes.
Data-marketing firm Exactis left a database of nearly 340 million detailed records on individuals and businesses exposed on a publicly accessible server with no firewall. Each record held up to 400 fields of personal profiling data, from contact details to children's ages, religion, and habits.
In May 2018, the website for the ticket distribution service Ticketfly was defaced by an attacker and was subsequently taken offline. The attacker allegedly requested a ransom to share details of the vulnerability with Ticketfly but did not receive a reply and subsequently posted the breached data…
In mid-2018, the home-design platform Houzz had a file containing user data obtained by an unauthorized third party. The company learned of it in late 2018 and disclosed it in early 2019. Roughly 49 million accounts were exposed, including emails, usernames, salted password hashes and IP-derived locations.
In May 2018, the social-commerce marketplace Poshmark was breached and roughly 36 million user accounts were exposed, including email addresses, names, usernames, genders, locations and bcrypt-hashed passwords. The company confirmed the incident in August 2019.
The education-technology company Chegg disclosed a 2018 breach affecting about 40 million users, exposing emails, names and unsalted MD5 password hashes; the FTC later cited four breaches and ordered Chegg to overhaul its security.
Political consultancy Cambridge Analytica improperly obtained the personal data of up to 87 million Facebook users via a personality-quiz app, exploiting Facebook's permissive third-party API to harvest friend networks and build voter-targeting profiles. The scandal triggered a record $5 billion FTC penalty.
In February 2018, Under Armour's MyFitnessPal app was breached, exposing about 144 million accounts with usernames, emails and passwords hashed using a mix of SHA-1 and bcrypt; the data later surfaced for sale via GnosticPlayers.
Attackers stole personal data on 57 million Uber riders and drivers in October 2016. Rather than disclose, Uber paid the hackers a $100,000 ransom and disguised it as a bug bounty — a cover-up that led to a $148 million multistate settlement and the criminal conviction of Uber's security chief.
An unpatched Apache Struts vulnerability let attackers exfiltrate Social Security numbers, dates of birth, addresses, and driver's license numbers for 147 million U.S., U.K., and Canadian consumers.
In June 2017, the online playlists service known as 8Tracks suffered a data breach which impacted 18 million accounts. In their disclosure, 8Tracks advised that "the vector for the attack was an employee’s GitHub account, which was not secured using two-factor authentication".
A destructive wiper disguised as ransomware, propagated via a compromised Ukrainian accounting software update. Estimated $10 billion in global damage — the most economically destructive cyberattack in history.
A North Korean ransomware worm that exploited the EternalBlue SMB vulnerability to spread to ~200,000 systems across 150 countries in 24 hours. Paralysed the U.K.'s NHS and crippled manufacturing globally.
In May 2017, the education platform Edmodo was hacked resulting in the exposure of 77 million records comprised of over 43 million unique customer email addresses. The data was consequently published to a popular hacking forum and made freely available.
A buffer-overflow bug in Cloudflare's edge servers caused them to leak adjacent chunks of memory — including passwords, cookies, and private messages from other customers — into web pages, where some were cached by search engines. The flaw was active for months before Google's Project Zero discovered it.
A local file inclusion flaw let attackers steal 412 million accounts across FriendFinder Networks' adult and dating sites, including AdultFriendFinder. Most passwords were stored in plain text or as unsalted SHA-1, and 'deleted' accounts were never actually removed.
A massive Mirai-botnet DDoS attack against managed DNS provider Dyn knocked Twitter, Netflix, Spotify, GitHub, Reddit, and dozens of other major sites offline across the U.S. and Europe, demonstrating how a botnet of compromised IoT devices could disrupt large swathes of the internet.
Two separate breaches — disclosed in 2016 but stretching back to 2013 and 2014 — exposed every Yahoo account in existence. Three billion accounts: the largest single-company data exposure in history.
In 2016, the site dedicated to helping people hack email and online gaming accounts known as Abusewith.us suffered multiple data breaches. The site allegedly had an administrator in common with the nefarious LeakedSource site, both of which have since been shut down.
Russian GRU Units 26165 (APT28) and 31165 (APT29) compromised the Democratic National Committee, Hillary Clinton campaign, and DCCC. Stolen emails were selectively released via 'DCLeaks', 'Guccifer 2.0', and WikiLeaks to influence the 2016 U.S. presidential election.
Credentials for roughly 360 million pre-2013 MySpace accounts surfaced for sale on the dark web in 2016. The passwords were stored as unsalted SHA-1 hashes, making one of the largest credential dumps ever disclosed trivially crackable.
Lazarus operators sent fraudulent SWIFT instructions through the New York Fed to wire $951 million out of Bangladesh Bank's reserve account. A typo on one transfer stopped $850M; $81M still escaped to Philippine casinos.
A SQL-injection attack against Hong Kong toymaker VTech's Learning Lodge service exposed the personal data of 6.4 million children and nearly 5 million parent accounts, becoming the first major breach to focus on data about minors.
In October 2015, the crowdfunding site Patreon was hacked and over 16GB of data was released publicly. The dump included almost 14GB of database records with more than 2.3M unique email addresses, millions of personal messages and passwords stored as bcrypt hashes.
Chinese state operators exfiltrated background-investigation forms (SF-86s) for 21.5 million U.S. federal employees and contractors — the most-damaging intelligence-loss cyber incident in U.S. government history.
Chinese state-attributed actors exfiltrated personal data on 78.8 million current and former Anthem health insurance customers — at the time the largest healthcare-sector breach in U.S. history.
A North Korean wiper attack tied to the release of 'The Interview' destroyed roughly half of Sony Pictures' IT estate and leaked terabytes of internal documents, emails, and unreleased films.
Attackers exploited a server missing two-factor authentication to breach more than 90 JPMorgan Chase servers and steal contact details for 76 million households and 7 million small businesses — one of the largest intrusions ever into a U.S. financial institution.
Attackers used a vendor's stolen credentials and custom point-of-sale malware to harvest about 56 million payment cards and 53 million email addresses from Home Depot's U.S. and Canadian self-checkout systems over five months — the largest retail card breach of its time.
Attackers used a small number of compromised employee credentials to access eBay's corporate network and exfiltrate a database covering all 145 million users — names, encrypted passwords, email and postal addresses, phone numbers, and dates of birth.
In May 2014, the link management company Bitly announced they'd suffered a data breach. The breach contained over 9.3 million unique email addresses, usernames and hashed passwords, most using SHA1 with a small number using bcrypt.
In February 2014, the crowdfunding platform Kickstarter announced they'd suffered a data breach. The breach contained almost 5.2 million unique email addresses, usernames and salted SHA1 hashes of passwords.
Attackers entered Target via stolen credentials from an HVAC contractor, pivoted to the payment network, and stole magstripe data on 40 million credit and debit cards plus PII on 70 million customers.
Attackers stole roughly 153 million Adobe account records — IDs, emails, weakly encrypted passwords and plaintext password hints — along with source code for several Adobe products, in one of the largest software-company breaches on record.
In September 2013, the online image sharing community imgur suffered a data breach. A selection of the data containing 1.7 million email addresses and passwords surfaced more than 4 years later in November 2017.
An archived 2013 database from social-invitations site Evite was accessed by an attacker and later traded online, exposing roughly 101 million unique email addresses along with names, phone numbers, postal addresses, dates of birth and plaintext passwords.
A 2013 intrusion at the blogging platform Tumblr exposed roughly 65 million email addresses and salted SHA-1 password hashes; the scale only became public in 2016 when the data surfaced for sale on dark-web markets.
A reused employee password — harvested from the 2012 LinkedIn breach — let an attacker steal a database of about 68 million Dropbox user credentials, which surfaced for sale on the dark web four years later.
A 2012 intrusion into LinkedIn exposed user passwords stored as unsalted SHA-1 hashes. Initially reported as 6.5 million credentials, the full scope of 117 million accounts only emerged in 2016 when the data surfaced for sale on the dark web.
Intruders penetrated Sony's PlayStation Network and Qriocity, compromising personal data on roughly 77 million accounts and forcing a 23-day global outage — one of the largest consumer data breaches of its time.
A spear-phishing email carrying a Flash zero-day gave attackers a foothold inside RSA, from which they exfiltrated data tied to the SecurID two-factor authentication system — data later used in an intrusion attempt against Lockheed Martin.
An SQL-injection foothold let Albert Gonzalez's crew plant sniffer malware inside Heartland's payment-processing network, capturing roughly 130 million card numbers in transit — at the time the largest card-data breach ever disclosed.
Attackers led by Albert Gonzalez sniffed weakly-encrypted in-store Wi-Fi at a Marshalls outlet and pivoted to TJX's central systems, exfiltrating an estimated 94 million payment-card records over an 18-month intrusion — the largest U.S. retail data breach of its era.