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Incidents by attack type:

Ransomware

RansomwareContained

Asahi Group Holdings Qilin ransomware (2025)

Qilin ransomware operators encrypted servers across Asahi's Japanese data centres, halting ordering, shipment, and production at 30 factories, leaking 27 GB of internal data, and exposing personal information of approximately 1.5 million customers, employees, and contacts.

Victim
Asahi Group Holdings
Loss
$31.4M
Records
1.5M
RansomwareContained

Indonesia PDNS Brain Cipher (LockBit 3.0) ransomware (2024)

Brain Cipher — a Lockbit 3.0–derived ransomware — encrypted Indonesia's Temporary National Data Center (PDNS), paralysing 282 government digital services from immigration to passport issuance for weeks. Attackers demanded $8M; the government refused. Brain Cipher subsequently released a decryptor free of charge, with an apology.

Victim
Pusat Data Nasional Sementara (PDNS), Indonesia
RansomwareContained

Westpole LockBit ransomware — Italian PA outage (2023)

LockBit 3.0 encrypted the data centres of Italian cloud provider Westpole, taking down PA Digitale's Urbi platform — which serves 1,300 Italian public administrations including 540 municipalities, the Quirinale presidency, ISTAT, the Bank of Italy, and the Ministry of Environment. Payroll, citizen services, and local-government workflows were degraded for weeks.

Victim
Westpole / PA Digitale (Urbi platform)
RansomwareContained

ICBC Financial Services LockBit ransomware (2023)

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.

Victim
ICBC Financial Services (U.S. broker-dealer of Industrial and Commercial Bank of China)
Loss
$9.00B
RansomwareRansom paid

Caesars Entertainment Scattered Spider ransom payment (2023)

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.

Victim
Caesars Entertainment
Loss
$15.0M
RansomwareContained

Xplain Play ransomware and Swiss federal documents leak (2023)

Play ransomware breached Swiss IT services provider Xplain, exfiltrating 1.3 million files. Approximately 65,000 documents belonging to the Swiss Federal Administration — including classified content, personal data, and readable passwords — were published on Play's dark-web leak site in June 2023.

Victim
Xplain (Swiss IT services provider to the Federal Administration)
Records
1.3M
RansomwareContained

Indigo Books LockBit ransomware

LockBit affiliates encrypted Canada's largest bookseller, taking the website and in-store payment systems offline for weeks. Indigo publicly refused the ransom; LockBit published employee personal data.

Victim
Indigo Books & Music Inc.
Loss
$40.0M
Records
5.0K
RansomwareContained

AIIMS Delhi ransomware

Ransomware encrypted the All India Institute of Medical Sciences in New Delhi — India's most prestigious public hospital — taking patient registration and clinical records offline for two weeks during peak winter patient load.

Victim
All India Institute of Medical Sciences (AIIMS) New Delhi
Loss
$15.0M
RansomwareContained

Conti ransomware attack on the Government of Costa Rica

Conti encrypted 27 Costa Rican government institutions including the Ministry of Finance, paralyzing tax collection and customs for months. President Chaves declared a national emergency — the first cyber-incident state of emergency in history.

Victim
Government of Costa Rica (27 institutions incl. Ministry of Finance, Customs, Social Security)
Loss
$130.0M
RansomwareContained

Hillel Yaffe Medical Center DeepBlueMagic ransomware (Israel, 2021)

DeepBlueMagic ransomware — attributed by Israeli officials to a Chinese criminal group — hit Hillel Yaffe Medical Center in Hadera, becoming the first known successful ransomware attack on an Israeli healthcare entity. Recovery extended for months. Israeli authorities subsequently reported a wave of follow-on attempts against nine more hospitals.

Victim
Hillel Yaffe Medical Center
RansomwareContained

Transnet 'Death Kitty' ransomware (South Africa, 2021)

A ransomware attack on South Africa's state-owned logistics firm Transnet shut down operations at Durban, Ngqura, Port Elizabeth and Cape Town container terminals, forcing the operator to declare force majeure. Durban — 60% of Southern Africa's containerised trade — reverted to paper-based clearance for cargo for a week.

Victim
Transnet SOC (state-owned freight & port operator)
RansomwareContained

HSE Ireland ransomware (Conti)

Conti ransomware paralysed Ireland's Health Service Executive, forcing cancellation of outpatient appointments nationwide for weeks. Conti released the decryptor for free; recovery still cost an estimated €100M+.

Victim
Health Service Executive (HSE) of Ireland
Loss
$130.0M
Records
700.0K
RansomwareRansom paid

Maastricht University Clop ransomware (Netherlands, 2019)

TA505 used Clop ransomware to encrypt 267 Maastricht University servers over Christmas 2019 after two phishing emails on 15–16 October had compromised the network. The university paid 30 BTC (~$220,000). The ransom Bitcoin — later seized from a money mule — was returned and had appreciated, leaving the university ahead by ~$300,000.

Victim
Maastricht University
Loss
$220.0K