SecurityWeek Briefing.
August 22, 2026 SATURDAY DEBRIEF Sponsored by: 2026 ICS Cybersecurity Conference ( Agenda Now Live! ) Hackers Using AI to Target Siemens PLCs in Critical US Sectors CareCloud Data Breach Impact Grows to 3.7 Million Individuals s Cl0p Ransomware Group Names 40+ Victims of PTC Windchill Campaign CISA Urges Patching of Exploited MS, VMware, Apple Vulnerabilities 943 Patches Rolled Out With Oracle’s August 2026 Security Update Cisco Patches Critical Crosswork, Secure Workload Vulnerabilities Atlassian, Splunk Patch Dozens of Critical, High-Severity Vulnerabilities CISO Conversations: Nico Waisman – From Self-Taught Hacker to AI-Driven Offensive Security at XBOW People on the Move Glow has appointed Patti Degnan as CISO Dali Rajic is joining OpenAI as Chief Revenue Officer Daniel Dubowski has been named SVP and CISO at Marriott International AGENDA NOW LIVE: ICS Cybersecurity Conference 2026 | Nashville, Oct 6-8 More Headlines from the Week Webinar On-Demand: Rethinking Cyber Defense ...