CISA says ransomware gangs are exploiting Microsoft Defender’s BlueHammer flaw, patched in April 2026 after zero-day reports.

CISA confirmed on Monday that ransomware gangs are now exploiting a Microsoft Defender privilege escalation vulnerability, dubbed BlueHammer, that has previously been abused in zero-day attacks.

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Arctic Wolf says Anubis affiliates abused RMM tools, VPN logins, RDP, PsExec, and cloud-transfer tools before ransomware ...

Spread the love“`html Most users don’t think about their computer’s firewall until something goes wrong. Yet the Windows Firewall is a critical component of your system’s security. Understanding how ...

Microsoft Windows offers multiple layers of protection to help defend against modern cyber risks. This guide covers key security technologies, including Defender Antivirus, Smart App Control, and ...

On June 24, 2026, Microsoft’s Digital Crimes Unit (DCU) facilitated the takedown, suspension, and blocking of domains that ...

In this episode of Today in Tech, Keith Shaw speaks with Armadin founder and Chief Offensive Security Officer Evan Pena about ...

France were kicked, punched, prodded and provoked by Paraguay, but at no point were they rattled. If anything, Kylian Mbappé ...

Cybersecurity researchers at Microsoft have uncovered a sophisticated piece of malware that spreads through USB drives, intercepts cryptocurrency wallet ...

Mapping detections and controls to MITRE ATT&CK: a practical guide for technical teams MITRE ATT&CK is useful because it gives technical teams a common language for describing adversary behaviour. For ...