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News

Help Net Security
helpnetsecurity.com > 09/10/2026 > browser-based-phishing-blob-urls-microsoft-oauth

Cybercriminals are building phishing pages that exist only inside victims' browsers

4+ day, 3+ hour ago   (352+ words) A phishing campaign routes victims through genuine Microsoft OAuth and Teams infrastructure before showing them a fake login page built entirely inside their own browser, according to researchers at Barracuda. “Instead of delivering a phishing page from a web server,…...

Help Net Security
helpnetsecurity.com > 09/09/2026 > f5-big-ip-apm-rootkit-hides-web-shell-in-memory

Hackers deploy Linux rootkit on F5 BIG-IP APM devices, hiding web shell in memory

4+ day, 22+ hour ago   (508+ words) A rootkit found on hacked F5 BIG-IP APM devices skips the usual step of writing a web shell to disk, hiding it in memory instead, according to Sophos. F5 BIG-IP APM provides access policy enforcement to secure access to apps, APIs, and…...

Help Net Security
helpnetsecurity.com > 09/07/2026 > connectwise-screenconnect-file-transfer-flaw

Attackers spread malware through ScreenConnect file transfers

1+ week ago   (324+ words) A file transfer flaw in ScreenConnect Remote Access Support and Access sessions affects both Cloud and On-Premise deployments, ConnectWise confirmed. “A CVE identifier and an official fix will be issued within the week,” the company wrote in its September 3 advisory....

Help Net Security
helpnetsecurity.com > 09/02/2026 > vali-cyber-zerolock-5-hypervisor-security

Vali Cyber ZeroLock 5 brings MFA to the hypervisor command line

1+ week, 5+ day ago   (474+ words) Vali Cyber released ZeroLock 5, a major release focused on closing the two most dangerous gaps in hypervisor security: insider threats and stolen credentials on ESX and Linux hosts. Over the past two years, ransomware operators and nation-state actors alike have…...

Help Net Security
helpnetsecurity.com > 09/01/2026 > revstealer-malware-claude-opus-5-github

Fake Claude Opus 5 app delivers malware and wipes its own tracks

1+ week, 5+ day ago   (572+ words) A malicious GitHub repository impersonating Anthropic and claiming to offer free access to “Claude Opus 5” is delivering RevStealer, Windows information-stealing malware that targets passwords, cryptocurrency wallet data and login credentials, according to Morphisec. Repository README using Claude Opus 5 branding and…...

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helpnetsecurity.com > 08/17/2026 > windows-11-security-bypass-research

Windows 11???s strongest security defenses can be bypassed without a screwdriver

4+ week, 3+ hour ago   (597+ words) Researchers from the University of Birmingham and Durham University have found a way to knock down some of the toughest protections in Windows 11 without physically opening or modifying the target machine. The attack assumes the attacker has already gained privileged…...