Cybersecurity News and Updates

Plex is urging users to update their instances to the latest version following the release of an update that patches multiple security flaws.

The fixes are available in Plex Media Server 1.43.3 and Plex Desktop 1.115.0. The streaming media service did not elaborate on what those issues are, but said CVE identifiers have been requested for them.

“We recommend all server owners and Desktop users

The Austin-based company will invest in agentic runtime security capabilities to secure AI coding agents.

The post HiddenLayer Raises $100 Million for AI Runtime Security appeared first on SecurityWeek.

New models, trained using NVIDIA Nemotron 3 Ultra, aim to catch rogue agent behavior before it executes, without the latency of large-model review.

The post Capsule Security Launches ‘AI Circuit Breaker’ to Stop Rogue Agents appeared first on SecurityWeek.

Hacker group published roughly 550GB of data after MAG reportedly refused to pay a ransom demand; the group says it gained access via exposed admin keys.

The post Manchester Airports Group Data on 8.8 Million People Leaked After Ransom Refusal appeared first on SecurityWeek.

The incident demonstrates how frontier AI agents can dramatically compress an attack timeline and coordinate a large-scale breach, according to researchers.

In this video conversation, Dark Reading editors discuss some of the news they didn’t get a chance to cover, from the latest antics of ShinyHunters to new research about the prevalence (or lack thereof) of AI-generated malware.

Threat actors behind the “Phantom Deal” campaign are studying companies in extreme detail, aiming to dupe midlevel employees into initiating large financial transfers.

Thomson Reuters disclosed on Wednesday that an unauthorized party obtained files from C-Track, the court case management platform sold by its West Publishing Corporation unit, in March 2026, affecting courts in 11 U.S. states, the U.S. Virgin Islands, and Ontario, Canada.

West Publishing said it discovered the activity on June 30, 2026. A subset of court records could contain individuals’ names

Cybersecurity researchers have disclosed details of a sophisticated Python-based Windows malware framework called BraZetsu that fuels an underground marketplace commercializing access to compromised hosts.

“Unlike the standard infostealer model, BraZetsu is a comprehensive master toolkit that empowers Initial Access Brokers (IABs) by turning compromised systems into highly valuable commercial

Cisco has released patches to address a critical security flaw affecting 10 Silicon One-based Nexus 9000 switches that could allow an unauthenticated, remote attacker to execute code as root, alongside an IOS XR hardening release bundling 7 umbrella CVEs, 2 of which are rated 9.8, with no workaround for any IOS XR version.

The Nexus vulnerability, tracked as CVE-2026-20212 (CVSS score: 9.8), is