lesker.com

lesker.com was compromised in a ransomware attack attributed to Chaos in December 2025. The organization, operating in the Technology sector in United States, was added to the group's data leak site as part of an extortion campaign.

Chaos 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.

Since it's foundation in 1954, Kurt J. Lesker Company has manufactured and sold vacuum equipment and parts to the electronic and communications related industries