The Cyberwire - Your Cyber Security News Connection.

A China-linked group exploits a critical Dell zero-day for 18 months. A Microsoft 365 Copilot bug risks sensitive email oversharing. A new Linux botnet leans on old-school IRC for command and control. Switzerland tightens critical infrastructure rules with mandatory cyber reporting. AstarionRAT emerges as a custom post-exploitation implant. Researchers find serious flaws in popular PDF platforms. A suspected Iranian-aligned campaign targets protest supporters. Notepad++ rolls out a “double-lock” update fix. And a Spanish court orders NordVPN and ProtonVPN to block illegal football streams. Our guest is Keith Mularski, Former FBI Special Agent and Chief Global Ambassador at Qintel, reflecting on the 25th anniversary of notorious spy Robert Hanssen's arrest. Dutch Defense flaunt F-35 firmware freedom.  Remember to leave us a 5-star rating and review in your favorite podcast app. Miss an episode? Sign-up for our daily intelligence roundup, Daily Briefing, and you’ll never miss a beat. And be sure to follow Cyb