The Cyber Express Weekly Roundup: Tax Data Breach, AI Security Risks, and Critical GitLab Flaw

This weekly roundup covers multiple active cybersecurity incidents and systemic risks: a data breach at France’s DGFiP exposing tax and cadastral records for 678,000 individuals, a suspected disruptive cyberattack against Ukraine’s Asset Recovery and Management Agency, a customer-data breach at Oz Hair and Beauty, and a critical GitLab vulnerability (CVE-2026-19478) with a CVSS of 9.4. The report also warns of expanding risks from enterprise AI, supply-chain attacks, and insecure integrations, and recommends prioritizing access controls, rapid vulnerability patching, AI governance, employee awareness, and continuous monitoring.