Microsoft Exchange / US federal agencies
Multiple federal agencies breached via Hafnium Exchange zero-days
Government Data Breaches (585 indexed)
CityBee
110,156 records exposed — Email addresses, Government issued IDs, Names, Passwords
City of Oldsmar FL (water)
Hacker remotely raised lye levels in drinking water treatment
Oldsmar FL water treatment
Remote access intruder raised sodium hydroxide to dangerous levels
City of Sparks NV
Ransomware attacked city government systems
Florida Dept of Veterans Affairs
8K veteran records exposed in email breach
NSW Government (Accellion)
Health and transport data compromised via Accellion FTA vulnerability
Washington State Auditor
1.47M unemployment claim records exposed in Accellion breach
Finnish Parliament (Eduskunta)
State-sponsored APT compromised MP email accounts — Chinese APT31 attributed
Scottish Environment Protection Agency
Conti ransomware stole 1.2GB of data — published 4,000+ files
City of Gary IN
Ransomware encrypted city systems for weeks
SolarWinds / US Dept of Energy
DOE and NNSA networks compromised via SolarWinds
SolarWinds / US Treasury
Russian SVR accessed US Treasury email systems via SolarWinds
SolarWinds / US Dept of Commerce
NTIA email systems compromised in SolarWinds supply chain
SolarWinds / CISA
Cybersecurity agency itself compromised in SolarWinds attack
SolarWinds / US Dept of Justice
DOJ email accounts accessed including 3,000+ employees
SolarWinds / US Dept of Homeland Security
DHS email accounts accessed by Russian intelligence
SolarWinds / US Dept of State
State Dept email systems compromised in supply chain attack
City of Pensacola FL
Maze ransomware encrypted city systems
City of Saint John (NB)
Ransomware attack disrupted municipal operations — IT systems offline for extended period
James
1,541,284 records exposed — Email addresses, Geographic locations, Passwords
Brazilian Superior Court of Justice
RansomEXX encrypted entire court system — backups also targeted
Chatham County NC
DoppelPaymer ransomware encrypted county systems
Lebanon Ministry of Finance
Lebanese government systems compromised — 31 million documents exfiltrated