Attackers exploit critical SharePoint flaw after PoC goes public (CVE-2026-55040)
Threat actors have begun exploiting a critical Microsoft SharePoint flaw following the release of proof-of-concept (PoC) exploit code by Rapid7. About CVE-2026-55040 Tracked …
153GB of stolen credentials surface after LiteLLM supply chain attack
A massive 153GB archive stolen during the LiteLLM supply chain attack exposes credentials and other sensitive data linked to thousands of corporate domains, including AWS, …
Cisco fixes vulnerability exploited to DoS its firewalls (CVE-2026-20349)
A high-severity vulnerability (CVE-2026-20349) is being leveraged by attackers to temporarily interrupt the operation of Cisco firewalls, the company has confirmed. The flaw …
Four corporate investigation mistakes organizations make under pressure
In this Help Net Security video, Christine Gadsby, VP and Chief Security Advisor at BlackBerry, explains why corporate investigations go wrong before the forensic team …
DDoS attacks hit record scale as 1 Tbps+ campaigns become more common
DDoS attacks grew in scale during the first half of 2026, bringing larger traffic floods, shorter attack durations, and increasingly automated campaigns. Cloudflare’s H1 …
Product showcase: Is this image real? Slop or Not investigates
Slop or Not is an AI text and image detector for iPhone and Mac that runs entirely offline, with no account required. It uses on-device AI models powered by the Apple Neural …
Wireshark 4.6.8 patches 28 security bugs, nine in file parsers
Wireshark 4.6.8 fixes 28 security bugs in the protocol analyzer, and nine of them fire when someone opens a saved capture file. Those nine sit in file parsers, the code that …
A stranger has been reading Salesforce and ServiceNow portals worldwide for 17 months
Most security stories start with something broken. This one starts with everything working as designed. Researchers at Reco have been tracking a campaign they call City-Forum, …
Signal’s new security feature checks if your encrypted chats were tampered with
Signal has introduced a feature called automatic key verification, giving users a new way to confirm that nobody has secretly interfered with their encrypted chats. “Signal is …
Lazarus hackers pair fake job offers with Windows zero-day exploit
The North Korea-linked Lazarus group is using fake job offers, trojanized PDF software and a Windows zero-day in attacks aimed primarily at the defense sector, Check Point …
Microsoft patches 400+ vulnerabilities, one zero-day under attack (CVE-2026-68820)
Microsoft’s August 2026 Patch Tuesday delivered security fixes for 400+ vulnerabilities, including one that has been exploited in zero-day attacks (CVE-2026-68820) and …
Chrome’s anti-abuse protections block 7 billion unwanted Android notifications daily
Google Chrome’s latest measures against abusive web push notifications include automatically revoking notification permissions for inactive and suspicious websites, …
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- A hollowed out data layer is making CISOs fly blind into AI attacks
- Hazmat: Open-source containment for AI agents
- Cisco fixes vulnerability exploited to DoS its firewalls (CVE-2026-20349)
- Four corporate investigation mistakes organizations make under pressure
- A stranger has been reading Salesforce and ServiceNow portals worldwide for 17 months