The incident occurred in May, when RubyGems maintainers suspended new account registrations due to what appeared like malicious activity. The post OpenAI Investigates Report Linking AI Agents to RubyGems Attack appeared first on SecurityWeek.
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) warned security teams that ransomware gangs have now joined ongoing attacks exploiting a critical VMware vCenter vulnerability patched in July. [...]
CriticalRansomware
With artificial intelligence (AI) shrinking the window between vulnerability discovery and exploitation and lowering the barrier to entry for bad actors, new findings from Sysdig show that skilled human operators can move just as swiftly after gaining initial access. In one instance highlighted by the cloud security company, the threat actor pivoted from ...
Threat actor
Hackers exploited a vulnerability in a VPN product to steal the personal information of roughly 240,000 people. The post 240,000 Hit by Data Breach at Japan’s Digital Agency appeared first on SecurityWeek.
Data breach
Introduction Security teams have gotten pretty good at testing against what can hurt them. Can this EDR agent catch this payload? Will my organization fail the phishing simulation? Does this SIEM rule fire on this particular technique? And, in more mature organizations, this testing happens continuously rather than as a one-off exercise. But no matter how...
Cybersecurity researchers have disclosed details of a mass-scanning campaign that has targeted Vite deployments siphon sensitive data. The first is an automated effort aimed at internet-exposed Vite development servers that's designed to steal cloud credentials, configurations from Amazon Web Services (AWS) and Microsoft Azure instances, and infrastructur...
The updates resolve kernel vulnerabilities that could lead to memory corruption, privilege escalation, system termination, and information leaks. The post Apple Patches 200 Vulnerabilities With New iOS 27, macOS Golden Gate 27 Releases appeared first on SecurityWeek.
Five alleged leaders of the Black Axe cybercrime syndicate, known for its involvement in global-scale cyber-enabled financial fraud, have been extradited to the United States to face wire fraud and money laundering charges. [...]
The Humanist AI Code of Conduct draws a line between defensive cyber research and operational attack capability. The post Microsoft AI Code of Conduct Sets Cyberattack Boundaries, Chain of Command, Safety Constraints appeared first on SecurityWeek.
Ads led to a ClickFix page designed to trick macOS and Windows users into installing malware. The post Hacked HBO Max Reddit Account Used for Malware Delivery via ClickFix Attack appeared first on SecurityWeek.
Malware
Microsoft has confirmed that copy and paste may silently fail for some Excel users after installing the September 2026 KB5002914 security update. [...]
Cisco warned customers to patch a critical Secure Email Gateway zero-day security flaw that threat actors have been exploiting in attacks. [...]
Zero-dayCritical
A critical vulnerability in LiteSpeed Web Server Enterprise could let a low-privilege website user gain root access on a shared-hosting server, cPanel warned in an advisory published on September 14. On such servers, many customers' sites run on a single machine, and an attacker with one of those hosting accounts could exploit the flaw to access or alter ...
Critical
Cisco has warned that a new critical vulnerability impacting AsyncOS Software for Cisco Secure Email Gateway has come under active exploitation in the wild. The vulnerability, tracked as CVE-2026-76461, carries a CVSS score of 9.8 out of a maximum of 10.0. It has been described as a case of insufficient validation in the email parsing logic that could all...
A Chinese threat actor has been attributed to a spear-phishing campaign that exploits recently patched security flaws in Google Chrome and Microsoft Windows to deliver a malicious JavaScript backdoor called GRIMWEDGE. Volexity, which is tracking the threat cluster under the moniker UTA0560, said the activity targeted multiple non-governmental organization...
Zero-dayMalwareThreat actor
An unauthenticated attacker can exploit CVE-2026-76461 to execute arbitrary commands on the underlying OS with root privileges. The post Root RCE Zero-Day in Cisco Secure Email Gateway Under Active Exploitation appeared first on SecurityWeek.
The notorious Russian threat group is spreading an upgraded version of the botnet malware, which the FBI disrupted in 2022.
Malware
Microsoft has released emergency out-of-band Windows updates to fix Remote Desktop Services failures caused by this month's security updates, along with Hyper-V and USB audio problems on some Windows versions. [...]