Unknown threat actors have breached the National Nuclear Security Administration's network in attacks exploiting a recently patched Microsoft SharePoint zero-day vulnerability chain. [...]

CISA has warned that attackers are actively exploiting two security vulnerabilities in the SysAid IT service management (ITSM) software to hijack administrator accounts. [...]

The ringleader of the Jetflicks illegal paid streaming operation, a massive service with tens of thousands of subscribers, was sentenced to seven years in prison. [...]

Microsoft has resolved a known issue that triggers invalid Windows Firewall errors after rebooting Windows 11 24H2 systems with the June 2025 preview update installed. [...]

CISA and the FBI warned on Tuesday of increased Interlock ransomware activity targeting businesses and critical infrastructure organizations in double extortion attacks. [...]

The United Kingdom's government is planning to ban public sector and critical infrastructure organizations from paying ransoms after ransomware attacks. [...]

Hackers with ties to the Chinese government have been linked to a recent wave of widespread attacks targeting a Microsoft SharePoint zero-day vulnerability chain. [...]

Microsoft is asking businesses to reach out for support to mitigate a known issue causing Cluster service and VM restart issues after installing this month's Windows Server 2019 security updates. [...]

Veeam warned customers today that a recently released Recovery Orchestrator version blocks Web UI logins after enabling multi-factor authentication (MFA). [...]

Over 1,000 CrushFTP instances currently exposed online are vulnerable to hijack attacks that exploit a critical security bug, providing admin access to the web interface. [...]

​Microsoft is investigating an ongoing incident causing intermittent issues for users attempting to access SharePoint Online sites. [...]

Microsoft has announced that the Exchange Server Subscription Edition (SE) is now available to all customers of its enterprise email service. [...]

​The Hunters International Ransomware-as-a-Service (RaaS) operation announced today that it has officially closed down its operations and will offer free decryptors to help victims recover their data without paying a ransom. [...]

Microsoft asked customers this week to disregard incorrect Windows Firewall errors that appear after rebooting their systems following the installation of the June 2025 preview update. [...]

Cisco has removed a backdoor account from its Unified Communications Manager (Unified CM), which would have allowed remote attackers to log in to unpatched devices with root privileges. [...]

Citrix warns that patching recently disclosed vulnerabilities that can be exploited to bypass authentication and launch denial-of-service attacks may also break login pages on NetScaler ADC and Gateway appliances. [...]

Microsoft has fixed a known bug that breaks the 'Print to PDF' feature on Windows 11 24H2 systems after installing the April 2025 preview update. [...]

Microsoft is working to fix a DNS misconfiguration that is causing one-time passcode (OTP) message delivery failures in Exchange Online for some users. [...]

On Monday, the International Criminal Court (ICC) announced that it's investigating a new "sophisticated" cyberattack that targeted its systems last week. [...]