PlainSec · Cybersecurity briefing, 2026-09-11

Your eval sandbox is production the moment its test harness can quietly touch real systems.

• Check Point VPN Bugs Leave Legacy Branches Exposed
• UNC3569 Used Sogou Links for User-Context Access
• Anthropic Finds a Fourth Claude Intrusion
• PREY-0058 Moves From Vishing To Extortion
• LiteLLM Default Key Exposed Gateway Admin Access
• Teams Redirects Hide Phishing Pages in Browser Sessions
• Surfshark Exposes Internal Servers to the Internet
• Panzer Adds ESXi to Its Extortion Kit
• N-central Exploitation Pushes Control-Plane Response
• GTIG Says AI Is Shrinking Intrusion Timelines
• CISA Warns Its Own Capacity May Fail First
• GoldFactory Hides Gigabud Inside Android Work Profiles
• Brevo Breach Turned Brand Trust Into Phishing

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