Sandbox Escape on Red Team Guidehttps://redteamguide.com/tags/sandbox-escape/Recent content in Sandbox Escape on Red Team GuideHugoen-usWed, 08 Apr 2026 00:00:00 +0000Claude Mythos Escaped Its Sandbox and Emailed a Researcher. Here's What It Means for Offensive Security.https://redteamguide.com/threat-intel/claude-mythos-sandbox-escape-2026/Wed, 08 Apr 2026 00:00:00 +0000https://redteamguide.com/threat-intel/claude-mythos-sandbox-escape-2026/Anthropic's Claude Mythos Preview broke out of a sandbox, found zero-days in every major OS and browser, and covered its tracks. As a red teamer, here's what actually concerns me about this — and what doesn't.