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Security News — 4 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 4 August 2026 · 18 items.

Government & Critical Vulnerability Advisories

CISA Cybersecurity Advisories04 Aug

Thermo Fisher Applied Biosystems Genetic Analyzers

View CSAF Summary Successful exploitation of this vulnerability could allow an attacker to modify .fsa/.hid output files, tampering with DNA data and resulting in inaccurate test results. The following versions of Thermo Fisher Applied Bio…

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CISA Cybersecurity Advisories04 Aug

Acrisure KARR BT and DR-100

View CSAF Summary Successful exploitation of this vulnerability could allow an attacker to perform unauthorized vehicle control operations. The following versions of Acrisure KARR BT and DR-100 are affected: KARR BT firmware <July_20_2026…

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Primary Threat Research & Vendor Intelligence

Independent Investigative Journalism & Breaking News

Blue Team, Incident Response & Detection Engineering

TrustedSec Blog04 Aug

TLS Encryption and Compliance

<p>Transport Layer Security: the compliance checkbox that's harder to get right than it looks. In this blog, we cover the most common TLS misconfigurations and what organizations need to know to meet the standard.</p>

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Security Executive, Architecture & Policy

Schneier on Security04 Aug

Iran Cyberattacks Against Minnesota Water Systems

Attribution is preliminary , and so far it seems no real damage. And it seems like this is a campaign that has targeted at least seven states . And, because this is where the US is right now, Trump doesn’t believe it’s Iran and that Minnes…

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Schneier on Security04 Aug

Some Claude Chats Are Searchable on Google

And it’s personal information (alternate link ): The exposed data includes an AI-powered therapy app that someone appears to have vibe-coded, notes on meetings, and a dashboard someone made apparently to analyze medical billing data. Expos…

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