Cyber Defense Advisors

News

CastleLoader Malware Infects 469 Devices Using Fake GitHub Repos and ClickFix Phishing

Cybersecurity researchers have shed light on a new versatile malware loader called CastleLoader that has been put to use in campaigns distributing various information stealers and remote access trojans (RATs). The activity employs Cloudflare-themed ClickFix phishing attacks and fake GitHub repositories opened under the names of legitimate applications, Swiss cybersecurity company PRODAFT said in 

Cyber News

Sophos and SonicWall Patch Critical RCE Flaws Affecting Firewalls and SMA 100 Devices

Sophos and SonicWall have alerted users of critical security flaws in Sophos Firewall and Secure Mobile Access (SMA) 100 Series appliances that could be exploited to achieve remote code execution.  The two vulnerabilities impacting Sophos Firewall are listed below – CVE-2025-6704 (CVSS score: 9.8) – An arbitrary file writing vulnerability in the Secure PDF eXchange […]

Cyber News

Watch This Webinar to Uncover Hidden Flaws in Login, AI, and Digital Trust — and Fix Them

Is Managing Customer Logins and Data Giving You Headaches? You’re Not Alone! Today, we all expect super-fast, secure, and personalized online experiences. But let’s be honest, we’re also more careful about how our data is used. If something feels off, trust can vanish in an instant. Add to that the lightning-fast changes AI is bringing […]

Cyber News

How the Solid Protocol Restores Digital Agency

The current state of digital identity is a mess. Your personal information is scattered across hundreds of locations: social media companies, IoT companies, government agencies, websites you have accounts on, and data brokers you’ve never heard of. These entities collect, store, and trade your data, often without your knowledge or consent. It’s both redundant and […]

Cyber News

Pentests once a year? Nope. It’s time to build an offensive SOC

You wouldn’t run your blue team once a year, so why accept this substandard schedule for your offensive side? Your cybersecurity teams are under intense pressure to be proactive and to find your network’s weaknesses before adversaries do. But in many organizations, offensive security is still treated as a one-time event: an annual pentest, a […]

Cyber News

China-Based APTs Deploy Fake Dalai Lama Apps to Spy on Tibetan Community

The Tibetan community has been targeted by a China-nexus cyber espionage group as part of two campaigns conducted last month ahead of the Dalai Lama’s 90th birthday on July 6, 2025. The multi-stage attacks have been codenamed Operation GhostChat and Operation PhantomPrayers by Zscaler ThreatLabz. “The attackers compromised a legitimate website, redirecting users via a […]

Cyber News

Storm-2603 Exploits SharePoint Flaws to Deploy Warlock Ransomware on Unpatched Systems

Microsoft has revealed that one of the threat actors behind the active exploitation of SharePoint flaws is deploying Warlock ransomware on targeted systems. The tech giant, in an update shared Wednesday, said the findings are based on an “expanded analysis and threat intelligence from our continued monitoring of exploitation activity by Storm-2603.” The threat actor […]

Cyber News

Free decryptor for victims of Phobos ransomware released

There is good news for any organisation which has been hit by the Phobos ransomware. Japanese police have released a free decryptor capable of recovering files encrypted by both the notorious Phobos ransomware, and its offshoot 8Base. Read more in my article on the Fortra blog. 

Cyber News

Europol Arrests XSS Forum Admin in Kyiv After 12-Year Run Operating Cybercrime Marketplace

Europol on Monday announced the arrest of the suspected administrator of XSS.is (formerly DaMaGeLaB), a notorious Russian-speaking cybercrime platform. The arrest, which took place in Kyiv, Ukraine, on July 222, 2025, was led by the French Police and Paris Prosecutor, in collaboration with Ukrainian authorities and Europol. The action is the result of an investigation […]

Cyber News