CISA has published a malware analysis report with compromise indicators and Sigma rules for "ToolShell" attacks targeting ...

Officials reiterated their belief that hackers were not exploiting the flaw, but nonetheless urged users to immediately check ...

CISA highlights critical Microsoft Exchange vulnerabilities, offering key insights and guidance to protect organizations from ...

Check out what CISA found after it dissected malware from the latest SharePoint hacks. Plus, the U.K.’s cyber agency is overhauling its cyber framework to keep pace as threats escalate. In addition, ...

Threat actors continue to exploit ToolShell to gain unauthorized access to on-premises SharePoint servers. On August 6, 2025, the Cybersecurity ...

Two senior officials defended the agency’s progress amid concerns about the effects of mass layoffs and budget cuts.

CISA has published a Malware Analysis Report (MAR) with analysis and associated detection signatures on files related to Microsoft SharePoint vulnerabilities ...

CISA is giving agencies until 9 a.m. Monday to address a vulnerability that, left unaddressed, could allow hackers to achieve ...

CISA has issued an emergency directive ordering all Federal Civilian Executive Branch (FCEB) agencies to mitigate a critical ...

Organizations around the world rely on the Common Vulnerabilities and Exposures Program, whose contract with CISA almost ...

CVE-2025-53786 is an elevation of privilege bug that Outsider Security's Dirk-jan Mollema reported to Microsoft. It exists ...

Administrators with hybrid Exchange Server environments are urged by Microsoft and the US Cybersecurity and Infrastructure ...