MOVEit Vulnerability Update: Clop Claims Responsibility

### Executive Summary: The report details Clop ransomware's exploitation of a critical zero-day in MOVEit Transfer (CVE-2023-34362) beginning in late May 2023, resulting in widespread data exfiltration and public extortion via the group's data-leak site; organizations using vulnerable MOVEit versions are advised to assume compromise, collect MOVEit.evtx logs, patch immediately, and engage legal and incident response resources.