Cybersecurity briefing — 2026-03-24

Here's your PlainSec briefing for Tuesday, March 24th.

• Interlock Ransomware Uses Zero-Day to Compromise Firewalls
• Critical SharePoint Flaw Being Actively Exploited
• CISA Orders Federal Agencies to Patch n8n RCE
• Iran-Related Cyber Campaigns Spike with Wipers and Ransomware
• Debian Fixes GStreamer RIFF Parser Integer Overflow
• Internet-Exposed KACE Appliances Suffer Administrative Takeover
• Voice Phishing Drives 11% of Intrusions in 2025
• Rockwell Vulnerability Allowing Remote ICS Hacking Exploited in Attacks
• Oracle Patches Critical Unauthenticated RCE in Fusion Middleware