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Security News — 20 August 2026

A daily, automatically-compiled digest of the cyber security stories that broke in the last 24 hours, drawn from 10 trusted feeds. Each entry is a short excerpt — follow the link to read the full article at its original publisher. Compiled 20 August 2026 · 18 items.

Government & Critical Vulnerability Advisories

Primary Threat Research & Vendor Intelligence

Independent Investigative Journalism & Breaking News

Blue Team, Incident Response & Detection Engineering

Security Executive, Architecture & Policy

Daniel Miessler19 Aug

I'm Worried About a Prompt Injection Worm

A honeycomb of small cells, one person at a screen in each, a purple filament threading cell to cell and turning each one cold while bundles are drawn out the bottom/images/prompt-injection-worm.webp/images/prompt-injection-worm.webp I thi…

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