Blog
Featured

Appraisal by AI: Model-driven victim prioritization in the VOLTA infostealer

The self-deleting VOLTA infostealer steals credentials, sessions, and cryptocurrency wallets. Then, it uses LLMs to profile victims and rank their most valuable assets.

November 5, 2026 14:00

Bring a tent, I've got the coffee: Lessons from it-sa

Thorsten may have had to camp out in Nuremberg to attend it-sa, but the real story is the initiative to add a formal IT Security apprenticeship program in Germany for the thousands of young hackers ready to join our side.

October 29, 2026 10:00

IR trends Q3 2026: Actors impersonate IT help desks in vishing attacks as ransomware activity increases

Phishing remained the leading initial access technique, while percentage of ransomware and pre-ransomware cases increased. Finance and public administration tied as the top-targeted industries.

October 29, 2026 06:00

NIK C2: The new AI-enabled command-and-control framework

Cisco Talos observed a new AI-integrated command-and-control (C2) framework in the wild called “NIK C2.”

Recent
October 29, 2026 14:00

A quiet week in infosec <.<

In this edition of the Threat Source newsletter, William explores how PHP has taken over the conversation, Node.js has joined in, but underneath it all, there are still good people doing good work.

October 28, 2026 17:32

Inside KeyDrift: Analyzing historical UAT-11473 activity on Cisco SD-WAN

Talos has identified UAT-11473, a highly sophisticated APT, who exploited CVE-2026-20127, an authentication bypass vulnerability in Cisco SD-WAN Catalyst Controller instances to bypass authentication and gain unauthorized access to affected systems to deploy KeyDrift.

October 27, 2026 06:00

From federal SOCs to Talos: Ryan Fetterman on practical security research

What does it mean to be "blue collar" for the blue team? Ryan Fetterman discusses the realities of detection engineering, and shares his philosophy on building a career in security without burning out.

October 22, 2026 14:04

I had plans for that second

The Earth is speeding up, the leap second is being abolished, oh, and there's critical vulnerabilities in PHP.

October 21, 2026 16:43

Compromised eMudhra intermediate certificates

Cisco Talos is aware of eight intermediate certificates belonging to the intermediate certificate authority, eMudhra.