Sapphire Sleet — Threat Actor Profile, Campaigns & Targets

Threat entity extracted from intelligence sources

Frequency
16
occurrences
First Seen
October 31, 2025
Last Seen
June 22, 2026

Sapphire Sleet is a apt_group tracked across 7 threat clusters and 16 intelligence report mentions on ThreatCluster. First observed October 31, 2025; most recent activity June 22, 2026.

Related Threat Clusters

Recent Intelligence Reports

  • Microsoft Attributes Mastra AI Supply Chain Attack to North Korea — Infosecurity-Magazine · June 22, 2026
  • A Forgotten Contributor Account Compromised the Entire Mastra npm Package Scope — Snyk · June 17, 2026
  • A Forgotten Contributor Account Compromised the Entire Mastra npm Package Scope — Snyk · June 17, 2026
  • Threat Actors Target Crypto Orgs — www.wiz.io · June 6, 2026
  • North Korean APT Targets macOS to Steal Crypto Wallets and SSH Keys — Gbhackers · June 3, 2026
  • North Korean hackers target macOS users with advanced malware campaign — Cybernews · June 1, 2026
  • New Sapphire Sleet attack against macOS users detailed | brief — Scworld · April 17, 2026
  • Sapphire Sleet Targets macOS With AppleScript Lures — Socprime · April 17, 2026

CVSS v3.1 Breakdown