AMBAU Personalservice

AMBAU Personalservice was compromised in a ransomware attack attributed to worldleaks in April 2026. The organization, operating in the Business Services sector in Germany, was added to the group's data leak site as part of an extortion campaign.

worldleaks operates as a financially motivated ransomware-as-a-service (RaaS) operation, exfiltrating sensitive data and threatening public disclosure to pressure victims into paying ransom demands.