Sophos named a Leader in the IDC MarketScape™: Worldwide Extended Detection and Response (XDR) Software 2025

Specialization among threat groups poses challenges for defenders, who now must distinguish between different actors responsible for different facets of an attack.

A novel technique to stump artificial intelligence (AI) text-based systems increases the likelihood of a successful cyberattack by 60%.

Platform-as-a-Service (PaaS) provider Railway on Wednesday disclosed “anomalous activity” related to systems that store customer environment variables. Upon further investigation, the company found that an unauthorized third party may have gained access to encrypted environment variables, and, in some cases, obtained the decrypted contents. The impact, it said, is limited to a “subset of users,

Cybersecurity researchers have disclosed a Microsoft 365 campaign that has been observed leveraging an adversary-in-the-middle (AitM) relay to capture sign-in sessions and then replay the stolen tokens to break into email accounts at 79 organizations. Huntress, which observed the activity between July 14 and September 22, 2026, said it detected 497 successful Microsoft 365 sign-in…

Threat hunters have discerned new activity associated with an Iranian threat actor known as Infy (aka Prince of Persia), nearly five years after the hacking group was observed targeting victims in Sweden, the Netherlands, and Turkey. “The scale of Prince of Persia’s activity is more significant than we originally anticipated,” Tomer Bar, vice president of…

A flaw in Linux’s vhost subsystem lets a local user read and write kernel memory at will and become root across nearly a decade of kernel versions. In one virtualization setup, it lets an untrusted virtual machine write to the host’s memory and hijack the program that runs the virtual machine. The bug is tracked…