October 2026

Anne Arundel County, Maryland, said an intruder stole files from government systems, and investigators are working to assess how much data was exposed.

An alleged Chinese state-backed group is using a new zero-day affecting BeyondTrust IT support software to conduct espionage attacks.

A local privilege escalation exploit published today gains root on OpenBSD 7.9 by chaining a roughly 37-year-old integer overflow with a separate kernel flaw, bypassing OpenBSD’s KARL kernel-address randomization and its SMAP and SMEP hardware protections. Security firm Calif, which found and reported the flaws, published a detailed writeup and full proof-of-concept code after OpenBSD shipped

Attackers repeatedly changed the files that AOMEI Backupper fetches from the vendor’s own update servers, in windows of five to ten minutes at a time between May and July 2026, so that any copy of the Windows backup program that checked for an update during one of those windows would download and run a backdoor.

Google Threat Intelligence Group, Mandiant, and ManageEngine’s Threat Analysis

Cybersecurity researchers have disclosed details of an advanced persistent threat (APT) spear-phishing campaign that has targeted individuals affiliated with Taiwan research organizations to direct victims to an adversary-in-the-middle (AitM) phishing framework designed to harvest their Google account credentials and multi-factor authentication (MFA) codes.

The activity is being tracked by

OpenAI has disclosed seven new incidents in which its artificial intelligence (AI) models exhibited misaligned behavior, including one case where its research model, after not having funds on an Ethereum test network, spent test cryptocurrency from a third-party’s wallet without authorization to complete a coding task.

The incident, the AI company said, involved an internal research model part

A cyber incident affecting contractor BAE Systems has knocked out the Bankruptcy Noticing Center, halting notices nationwide for a week.

The post BAE Systems Security Incident Stalls Notices From US Bankruptcy Courts appeared first on SecurityWeek.

Armory Castle exploited CVE-2026-102764 for initial access, deployed custom tools, and deleted logs and artifacts.

The post Chinese APT Exploited BeyondTrust Vulnerability as Zero-Day appeared first on SecurityWeek.

Left without funds for a coding task, an OpenAI model spent test crypto from a stranger’s wallet and left it out of its report.

The post OpenAI Models Hacked Data Portals, Raided a Crypto Wallet to Finish Tasks appeared first on SecurityWeek.

Successful exploitation of some of these issues could lead to remote code execution and full device takeover.

The post F5, Juniper Networks Patch Critical Vulnerabilities appeared first on SecurityWeek.