InfoSecBulletin Cybersecurity for mankind

Daily a lot of cyberattack happen around the world including ransomware, malware attack, data breaches, website defacement and so on. It’s our daily security digest to cover the latest happenings in the world. A Daily Security Update is a concise, regularly published summary of the latest developments in cybersecurity. Its …

Microsoft has issued emergency security updates to fix a critical zero-day vulnerability in Microsoft Office that has been actively exploited. The vulnerability, CVE-2026-21509, affects several Office versions: Microsoft Office 2016, 2019, LTSC 2021, LTSC 2024, and Microsoft 365 Apps for Enterprise (the company’s cloud-based subscription service). “Reliance on untrusted inputs …

A new framework dubbed Embedded Systems Threat Matrix™ (ESTM) was introduced to help secure embedded systems used in critical infrastructure and defense technologies across the U.S. Developed collaboratively with the Air Force’s Cyber Resiliency Office for Weapon Systems (CROWS). ESTM tackles a vital security issue by protecting essential systems from …