Hannover Re
leakeddataThis record tracks a ransomware attack claimed by the leakeddata group against Hannover Re. It collects the publicly disclosed attack details — sector, location and timeline — as published on the operator's leak site and indexed by Breach House.
Window Zero
EXPOSURE GAPWindow Zero is the time the breach stayed in the open before anyone said so — the gap between when the attack was first discovered on the operator's leak site (t1) and when it was publicly disclosed (t2). The wider this window, the longer victims, staff and customers were exposed with no warning.
Attack Summary
Hannover Re is a German reinsurer based in Hannover, Lower Saxony, and operates in the finance, legal, and insurance space. It is one of the world’s leading reinsurers, providing property and casualty reinsurance as well as life and health reinsurance to clients worldwide. The group designs tailored reinsurance solutions and maintains a global presence across its business lines. It was listed as a ransomware victim associated with leakeddata.
Leak Screenshots
SAMPLEProof-of-breach screenshots the operator posted from the stolen data. Previews are redacted and locked — the originals are available on HaveIBeenRansom.