IT Security Newsletter

IT Security Newsletter - 5/6/2026

Written by Cadre | Wed, May 6, 2026

Trellix Source Code Breach Highlights Growing Supply Chain Threats

Cybersecurity vendor Trellix published a terse statement last Friday, disclosing that a threat actor recently gained unauthorized access to "a portion of our source code repository." Trellix did not reveal what portion was compromised and provided few details about the breach. Trellix said it immediately began working with "leading forensic experts" to investigate the breach and also notified law enforcement. READ MORE...

Iranian APT Intrusion Masquerades as Chaos Ransomware Attack

The Iran-linked APT actor MuddyWater has been observed performing an intrusion masquerading as a ransomware attack, Rapid7 reports. As part of the intrusion observed in early 2026, the attackers relied on social engineering for initial access and performed operations typically associated with espionage campaigns, including reconnaissance, credential harvesting, and data theft, but did not deploy file-encrypting ransomware. READ MORE...

Instructure hacker claims data theft from 8,800 schools, universities

The hacker behind a breach at education technology giant Instructure claims to have stolen 280 million records tied to students and staff from 8,809 colleges, school districts, and online education platforms. Instructure is a cloud-based education technology company best known for its Canvas learning management system, which schools and universities use to manage coursework, assignments, grading, and communication. READ MORE...

  • ...in 1915, actor/filmmaker Orson Welles ("Citizen Kane", "The Third Man") is born in Kenosha, WI.
  • ...in 1915, Babe Ruth hits his first major league home run as a pitcher for the Boston Red Sox.
  • ...in 1935, President Franklin D. Roosevelt issues Executive Order 7034, establishing the Works Progress Administration.
  • ...in 1941, comedian Bob Hope makes his first of dozens of tours with the USO to entertain American troops overseas.