InfoSecBulletin Cybersecurity for mankind

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a new security flaw affecting different Linux versions to its list of Known Exploited Vulnerabilities (KEV). They mentioned that there is proof of this flaw being used in real attacks. The flaw, known as CVE-2026-31431 (CVSS score: 7.8), is a type …

Cyberattacks are rising around the world, including ransomware, malware, data leaks, and hacked websites. These events show how complex and widespread today’s threats are. Daily Security Update is a short, regular report that keeps people and organizations updated on the latest in cybersecurity. It shares timely information on new threats, …

Microsoft Defender sent out many false alerts after a wrong security update made it mark two real DigiCert root certificates as malicious. This could have stopped SSL/TLS checks and code-signing work in businesses everywhere. A Defender antimalware signature update released around April 30, 2026, introduced a detection labeled Trojan:Win32/Cerdigent.A!dha, which …