It pays to be a forever student
In this newsletter, Joe discusses why understanding other disciplines can often flow back into the macro and micro of cybersecurity, especially in a world of AI.
UAT-4356's Targeting of Cisco Firepower Devices
Cisco Talos is aware of UAT-4356's continued active targeting of Cisco Firepower devices’ Firepower eXtensible Operating System (FXOS). UAT-4356 exploited n-day vulnerabilities (CVE-2025-20333 and CVE-2025-20362) to gain unauthorized access to vulnerable devices.
IR Trends Q1 2026: Phishing reemerges as top initial access vector, as attacks targeting public administration persist
Phishing reemerged as the most observed means of gaining initial access, accounting for over a third of the engagements where initial access could be determined. Phishing has not been the top vertical for initial access since Q2 2025.
[Podcast] It's not you, it's your printer: State-sponsored and phishing threats in 2025
In this episode of Talos Takes, Amy and Martin Lee unpack state-sponsored and phishing trends from the 2025 Talos Year in Review.
Phishing and MFA exploitation: Targeting the keys to the kingdom
In 2025, attackers increasingly targeted weaknesses in multi-factor authentication (MFA) workflows, and phishing attacks leveraged valid, compromised credentials to launch lures from trusted accounts. The trends focused entirely on trust, or the lack thereof, in everyday business operations.
Bad Apples: Weaponizing native macOS primitives for movement and execution
Cisco Talos documents several macOS living-off-the-land (LOTL) techniques, demonstrating that native pathways for movement and execution remain accessible to those who understand the underlying architecture.
Foxit, LibRaw vulnerabilities
Cisco Talos’ Vulnerability Discovery & Research team recently disclosed one Foxit Reader vulnerability, and six LibRaw file reader vulnerabilities. The vulnerabilities mentioned in this blog post have been patched by their respective vendors, all in adherence to Cisco’s thir
The Q1 vulnerability pulse
Thor provides an overview of the Q1 2026 vulnerability statistics, highlighting key trends in legacy CVEs and the evolving impact of AI on the threat landscape.
PowMix botnet targets Czech workforce
Cisco Talos discovered an ongoing malicious campaign, operating since at least December 2025, affecting a broader workforce in the Czech Republic with a previously undocumented botnet we call “PowMix.”