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Security News — 21 September 2026

A daily, automatically-compiled digest of the cyber security stories that broke in the last 24 hours, drawn from 8 trusted feeds. Each entry is a short excerpt — follow the link to read the full article at its original publisher. Compiled 21 September 2026 · 12 items.

Government & Critical Vulnerability Advisories

Primary Threat Research & Vendor Intelligence

Independent Investigative Journalism & Breaking News

Blue Team, Incident Response & Detection Engineering

SANS Internet Storm Center (Handler Diary)21 Sep

TerminalFix: PNG Steganography, (Mon, Sep 21st)

Microsoft Security Research published an interesting blog post "TerminalFix campaign deploys a reverse tunnel through multistage intrusion" about a malware campaign. The aspect that I want to take a closer look at, is the fact that the thr…

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Security Executive, Architecture & Policy

Schneier on Security21 Sep

Reverse-Engineering Flock Cameras

Hackers captured a Flock camera and got a look (alternate link ) at the software: While much of the automatic license plate reader’s (ALPR) most sensitive storage remained encrypted and inaccessible, the joint analysis of the recovered dat…

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Daniel Miessler21 Sep

I Think Our Main Agents Will Have Names

Isometric cutaway of a house at night: the owner asleep upstairs in sienna while four distinct purple people work the lamplit rooms below, one at the front door with a lantern, one sorting his mail into a ledger, one at his computer, one l…

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