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
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…
When security leaders embrace this truth and learn to speak in the language of leadership, they don’t just protect the enterprise, they help lead it forward.
Sophos has been recognized for defending customers of all sizes against today’s complex cyberattacks, achieving four prestigious awards at the SE Labs Awards 2025.
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…
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…
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…
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…
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…
Cybersecurity researchers have uncovered a new stealthy backdoor concealed within the “mu-plugins” directory in WordPress sites to grant threat actors persistent access and allow them to perform arbitrary actions. Must-use plugins (aka mu-plugins) are special plugins that are automatically activated on all WordPress sites in the installation. They are located in the “wp-content/mu-plugins”