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
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
Conti operators tricked an HSE user into downloading a booby-trapped Excel attachment; the resulting ransomware forced the Health Service Executive to shut down all of Ireland's healthcare IT systems and exfiltrated 700 GB including COVID-19 vaccination PHI. Recovery cost exceeded €100 million.
- Victim
- Health Service Executive (HSE) of Ireland
- Loss
- $110.0M