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Huntress researchers identified a fake page impersonating the WatchGuard download portal that harvested VPN server addresses, usernames and passwords before offering the legitimate Mobile VPN with SSL installer. The investigation began after suspicious activity involving an administrator at a managed service provider (MSP), who found the …
Huntress analyzed an active credential-phishing campaign in which the lookalike domain watchguard-vpn.net harvests WatchGuard SSL VPN credentials. On October 7, 2026, an administrator at a managed service provider searched Bing for "watchguard vpn sll download" and clicked through to the fake page, which Huntress classifies as SEO poisoni…
Huntress researchers detailed an SEO-poisoning campaign on 13 October that harvests SSL VPN credentials through a lookalike WatchGuard download page, watchguard-vpn.net, and then delivers the legitimate, validly signed Mobile VPN with SSL installer. Earlier waves used trojanised installers, but this iteration contains no malware, so endpo…
This SentinelOne weekly roundup (Week 41, 2026) covers law enforcement actions, a phishing campaign and an actively exploited vulnerability. The most urgent item is CVE-2026-21589, a critical (CVSS 9.3) unauthenticated arbitrary file access flaw in Atlassian Data Center products. Exploitation attempts began about two hours after a public …
The threat actor behind the GhostAction supply chain campaign has expanded beyond malicious GitHub Actions workflows. According to OpenSourceMalware, it now phishes open-source maintainers and plants a second-stage credential stealer disguised as a font file. The shift appears to follow GitHub's October 9 block on the malicious workflow, …
A Cisco blog post by Renato Morais compares past landmark threats with the emerging risk from autonomous AI agents, then presents Cisco's agentic security reference architecture. It recounts the ILOVEYOU worm (2000), a social-engineering email worm, and WannaCry (2017), a ransomware worm using EternalBlue against unpatched Windows systems…
Check Point Research's Q3 2026 Brand Phishing Report finds Microsoft was the most impersonated brand, at 33% of all attempts (up from 23% in Q2) and roughly four times the share of any other brand. Apple, Google, LinkedIn and Amazon completed the top five, together accounting for more than half of attempts. Dropbox (up ten places to eight…
Huntress published an explainer on business email compromise (BEC), a targeted form of phishing in which attackers impersonate or take over trusted email accounts to redirect payments or steal credentials. The article cites roughly $55 billion in worldwide losses and a Huntress survey of 500+ US IT professionals, in which 36% of organizat…
This weekly recap covers several concurrent incidents. ConnectWise disabled seven application identities and suspended Cloud Backup after unknown actors abused them to compromise Microsoft 365 tenants. China-nexus Armory Castle (UNC5221 / Warp Panda) exploited BeyondTrust Remote Support flaw CVE-2026-102764 (CVSS 9.3) as a zero-day in lat…
Dutch authorities arrested a 24-year-old, reportedly Pepijn van der Stap (alias "Umbreon"), around Sept. 16, 2026 on suspicion of aiding data thefts and extortions by ShinyHunters. Van der Stap was previously convicted in 2023 for data theft and extortion. Days after the arrest, remaining ShinyHunters members escalated, breaching the FBI …
This SentinelOne weekly roundup (Week 39, 2026) covers one law enforcement success and two active threat campaigns. A US court sentenced Armenian national Karen Serobovich Vardanyan ("Maneeken"/"Karl Lagerfeld"), an initial access specialist for Ryuk ransomware, to two years in prison and over $1.2 million in restitution. SentinelLABS ide…
