Security Bulletins

Daily cybersecurity intelligence and vulnerability bulletins from sig9.

September 23, 2026

Hacker Wars - September 23, 2026

Your daily dose of infosec chaos Three infrastructure zero-days walk into your perimeter, and all of them are already exploited in the wild. F5, Check Point, and Arista all shipped emergency fixes for …

read more
September 22, 2026

Hacker Wars - September 22, 2026

Your daily dose of infosec chaos CISA’s Known Exploited Vulnerabilities catalog had a busy morning: Zyxel switches, Veeam backup servers and the Linux kernel all made the list, so your patch backlog …

read more
September 18, 2026

Hacker Wars - September 18, 2026

Your daily dose of infosec chaos Today the machines did the hacking: an autonomous AI agent breached a Spanish organization and quietly edited personal records, no keyboard-wielding human required. …

read more
September 15, 2026

Hacker Wars - September 15, 2026

Your daily dose of infosec chaos Email gateways are having the worst week, nation-state crews are chaining bugs like speedrunners, and Microsoft is patching its own patches. Cisco’s mail gateway is …

read more
September 11, 2026

Hacker Wars - September 11, 2026

Your daily dose of infosec chaos DevOps infrastructure, print servers, and even keyboard input methods are all having a bad day. Attackers are chaining flaws in build pipelines to plant backdoors, AI …

read more
September 10, 2026

Hacker Wars - September 10, 2026

Your daily dose of infosec chaos Firewall management consoles are being bypassed in the wild, and an alarming number of AI gateways turn out to be secured with the placeholder password from the …

read more
September 9, 2026

Hacker Wars - September 09, 2026

Your daily dose of infosec chaos Microsoft just shipped the biggest Patch Tuesday in history, and the research community answered by dropping a fresh Defender zero-day on top of the pile. Google …

read more
September 8, 2026

Hacker Wars - September 08, 2026

Your daily dose of infosec chaos E-commerce admins get to deal with an actively exploited Magento zero-day, because patching under fire builds character. Meanwhile 220 million traveler records are …

read more
September 4, 2026

Hacker Wars - September 04, 2026

Your daily dose of infosec chaos Google shipped an emergency fix for an actively exploited Chrome zero-day, WordPress admins are catching 440,000+ exploit attempts to the face, and a dev-tools vendor …

read more
August 21, 2026

Hacker Wars - August 21, 2026

Your daily dose of infosec chaos Today’s theme is trust betrayal: Defender’s own signed driver turns kernel attacker, the passkeys we keep pushing as the answer become the persistence problem, and AI …

read more