Kaseya VSA Supply Chain Attack

# Kaseya VSA Supply Chain Attack ## Overview On July 2, 2021, the REvil ransomware group executed one of the most sophisticated supply chain attacks in cybersecurity history.

Threat IntelligenceTIDThreatVSDVulnerabilityIntermediateCONFIDENTIAL2,159 words9 min readApr 7, 2026

Last updated Apr 11, 2026

CLASSIFICATION: CONFIDENTIAL

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Threat IntelligenceTIDThreatIntermediate

Table of Contents

Kaseya VSA Supply Chain Attack

What you need

Also at this clearance level

APT28 (Fancy Bear / Forest Blizzard)

Lazarus Group (HIDDEN COBRA / Diamond Sleet)

Salt Typhoon

Single Sign-On (SSO) Architecture

The Academy

The Command Post

The Armory