Microsoft’s WSUS Patch Causes Hotpatching Failures on Windows Server 2025
Microsoft has acknowledged a critical issue affecting Windows Server 2025 systems enrolled in the Hotpatch program. A recent Windows Server Update Services (WSUS) patch was…
Month: November 2025
How nations build and defend their cyberspace capabilities
In this Help Net Security interview, Dr. Bernhards Blumbergs, Lead Cyber Security Expert at CERT.LV, discusses how cyberspace has become an integral part of national…
Microsoft Detects “SesameOp” Backdoor Using OpenAI’s API as a Stealth Command Channel
Nov 04, 2025Ravie LakshmananArtificial Intelligence / Malware Microsoft has disclosed details of a novel backdoor dubbed SesameOp that uses OpenAI Assistants Application Programming Interface (API)…
Why successful businesses are built on protection
Company leaders need to recognize the gravity of cyber risk, turn awareness into action, and put security front and center 07 Oct 2025 • ,…
Malicious PuTTY Ads Deliver OysterLoader, Allowing Attackers Full Device and Network Access
The Rhysida ransomware gang has been running a sophisticated malvertising campaign that delivers OysterLoader malware through deceptive search engine advertisements, giving attackers complete access to…
Cybercriminals have built a business on YouTube’s blind spots
The days when YouTube was just a place for funny clips and music videos are behind us. With 2.53 billion active users, it has become…
Microsoft Detects “SesameOp” Backdoor Using OpenAI’s API as a Stealth Command Channel
Nov 04, 2025Ravie LakshmananArtificial Intelligence / Malware Microsoft has disclosed details of a novel backdoor dubbed SesameOp that uses OpenAI Assistants Application Programming Interface (API)…
Passwords alone are not enough
Never rely on just a password, however strong it may be. Multi-factor authentication is essential for anyone who wants to protect their online accounts from…
Using the OpenAI Assistants API for Covert C2 Communication
Microsoft’s Detection and Response Team has exposed a sophisticated backdoor malware that exploits the OpenAI Assistants API as an unconventional command-and-control communication channel. Named SesameOp,…
Deepfakes, fraud, and the fight for trust online
In this Help Net Security video, Michael Engle, Chief Strategy Officer at 1Kosmos, explains how deepfakes are changing online identity verification. He describes how fake…
How Uber seems to know where you are – even with restricted location permissions
Is the ride-hailing app secretly tracking you? Not really, but this iOS feature may make it feel that way. 09 Oct 2025 • , 3…
Hackers Actively Scanning for TCP Port 8530/8531 Linked to WSUS Vulnerability CVE-2025-59287
Cybersecurity researchers and firewall monitoring services have detected a dramatic surge in reconnaissance activity targeting Windows Server Update Services (WSUS) infrastructure. Network sensors collected from…