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Peter Mandelson, a former British ambassador to the United States, failed security vetting clearance before taking his position. 

ICE acting director Todd Lyons is set to resign at the end of May. 

OpenAI has launched GPT-5.4-Cyber, a model optimized for defensive cybersecurity usage. 

McGraw Hill announced a data breach connected to a Salesforce misconfiguration.

Venice’s hydraulic pump system was hacked.

New intelligence suggests a pro-Iranian actor is responsible for the L.A. Metro cyberattack. 

3 quantum realities security leaders need to confront. 

Booking.com is warning customers that their information may have been exposed. 

Former Army employee indicted for allegedly sharing classified national defense information to unauthorized individuals. 

Security experts share their thoughts on Claude Mythos and Project Glasswing with Security magazine.