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Talos Blog
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Latest posts
Last updated 1 day ago
I'm locked in!
1 day ago
Welcome to this week’s edition of the Threat Source newsletter.I’ve struggled a...
Microsoft releases update to address zero-day vulnerability in Microsoft Office
1 day ago
Microsoft has published three out-of-band (OOB) updates so far in January 2026...
Dissecting UAT-8099: New persistence mechanisms and regional focus
2 days ago
Cisco Talos has identified a new campaign by UAT-8099, active from late...
IR Trends Q4 2025: Exploitation remains dominant, phishing campaign targets Native American tribal organizations
2 days ago
Threat actors predominately exploited public-facing applications for the second quarter in a...
I scan, you scan, we all scan for... knowledge?
8 days ago
Welcome to this week’s edition of the Threat Source newsletter. “Upon us...
Foxit, Epic Games Store, MedDreams vulnerabilities
9 days ago
Cisco Talos’ Vulnerability Discovery & Research team recently disclosed three vulnerabilities in...
Predicting 2026
15 days ago
Welcome to this week’s edition of the Threat Source newsletter. It’s become...
UAT-8837 targets critical infrastructure sectors in North America
16 days ago
Cisco Talos is closely tracking UAT-8837, a threat actor we assess with...
Brushstrokes and breaches with Terryn Valikodath
17 days ago
Cisco Talos is kicking off the new year with a behind-the-scenes look...
Microsoft Patch Tuesday for January 2026 — Snort rules and prominent vulnerabilities
17 days ago
Microsoft has released its monthly security update for January 2026, which includes...
Resolutions, shmesolutions (and what’s actually worked for me)
22 days ago
Welcome to this week’s edition of the Threat Source newsletter. I went...
UAT-7290 targets high value telecommunications infrastructure in South Asia
23 days ago
Cisco Talos is disclosing a sophisticated threat actor we track as UAT-7290...