Security Digest - June 21, 2026

Daily security intelligence briefing for infrastructure and endpoint management teams. Consolidated from authoritative research, vendor advisories, and community discussions.

• Generated (UTC): 2026-06-21 15:46:24 +00:00
• Lookback window: 7 days

🚀 Top Research & Advisories

• Chrome Extensions’ Critical Flaws Let Attackers Easily Compromise Millions of Browsers - (CybersecurityNews) System.Xml.XmlElement

  Action: Validate Chrome coverage; update managed package if needed.

🛡 Security Ops

• Webinar: How attackers bypass MFA and how defenders can respond - (BleepingComputer) Review CA/MFA settings for tightening opportunities.

🛠 Infrastructure & Endpoint Control

• Free Zero to Hero course + .pdf on WiFi hacking from an OSWP! - (Reddit r/cybersecurity) Confirm Adobe exposure; push updated deployment.

• Microsoft confirms Windows 11 26H2 to finally get one of the most requested features - (Neowin) Validate workstation security baseline and update compliance.

• Microsoft Paint used to be my favorite Windows app as a kid, and it’s still pretty good - (Neowin) Validate workstation security baseline and update compliance.

• Microsoft Weekly: new Surface, Windows 11 26H2, and more - (Neowin) Validate workstation security baseline and update compliance.

🔍 Quick Links (Watch Items)

• I discovered and responsibly disclosed a Broken Access Control vulnerability in a government portal serving 300K+ students - (Reddit r/cybersecurity)
• How to get cybersecurity contracts - (Reddit r/cybersecurity)
• Top Linux Security Tools For Ethical Hackers 2026 - (Reddit r/cybersecurity)
• GentleKiller Ransomware Abuses Vulnerable Drivers to Disable 400+ EDR Security Processes - (CybersecurityNews)
• Need advice on which exam should i go for with free exam voucher from MS AIskilfest - (Reddit r/cybersecurity)
• What security awareness training actually works? (vs what just checks a box) - (Reddit r/cybersecurity)
• Free Zero to Hero course + .pdf on WiFi hacking from an OSWP! - (Reddit r/cybersecurity)
• CyberSentinel AI with 33 Security Tools, Including Nmap, SQLMap, ZAP, and uses Claude, GPT - (CybersecurityNews)
• Hackers exploit info disclosure bug in Gravity SMTP WordPress plugin - (BleepingComputer)
• CISA Adds LiteSpeed cPanel Plugin Vulnerability to KEV List Following Active Exploitation - (CybersecurityNews)