The U.S. Cybersecurity and Infrastructure Security Agency (CISA) warned Federal Civilian Executive Branch (FCEB) Agencies that they have to secure their systems from ongoing attacks exploiting a critical vulnerability in Microsoft Outlook by February 27, 2025.

According to VulnCheck, 768 CVEs were registered as exploited in real-life attacks in 2024. This is 20% greater compared to 2023 when hackers exploited 639 vulnerabilities.

The nonprofit organization announced that, starting June 4, 2025, it will stop sending expiration notification emails to subscribers. The primary reason behind this decision is that providing expiration notifications costs Let’s Encrypt tens of thousands of dollars per year.

Google released the February set of patches for Android. In total, they fix 48 bugs, including a kernel zero-day vulnerability actively exploited by hackers.

The Python Package Index (PyPI) introduces a new project archival system: a project can now be archived to notify users that it’s not expected to be updated any time soon.

A critical vulnerability has been discovered in the open-source Cacti framework: it enables an authenticated attacker to remotely execute arbitrary code.

Experts believe that recently patched vulnerabilities in SimpleHelp Remote Monitoring and Management (RMM) were used by attackers to gain initial access to corporate networks.