Outsider

Also known as Outsider Enterprise

Reports

First seen

Jun 12

Last seen

Jun 15

Motivation

financial, phishing-as-a-service

Targeting

Sectors

education ×1

Top ATT&CK techniques

T1566 Phishing ×3T1195 Supply Chain Compromise ×2T1059 Command and Scripting Interpreter ×2T1041 Exfiltration Over C2 Channel ×2T1190 Exploit Public-Facing Application ×2T1053 Scheduled Task/Job ×1T1557 Man-in-the-Middle ×1T1110 Brute Force ×1T1547 Boot or Logon Autostart Execution ×1T1071 Application Layer Protocol ×1T1555 Credentials from Password Stores ×1T1598 Phishing for Information ×1

Indicators

cve ×39filename ×3domain ×1

Indicator values are available on Pro and via the API.

Associated CVEs

CVE-2026-50751 (exploited)CVE-2026-35273 (exploited)CVE-2026-2441 (exploited)CVE-2026-27022 CVE-2026-34908 (exploited)CVE-2026-34909 (exploited)CVE-2026-34910 (exploited)CVE-2026-3909 (exploited)CVE-2026-3910 (exploited)CVE-2026-41091 (exploited)CVE-2026-45657 CVE-2026-50507 CVE-2025-8088 (exploited)CVE-2026-5281 (exploited)CVE-2026-11645 (exploited)

Recent reports

High

Weekly Cybersecurity Recap: Chrome 0-Day, Oracle PeopleSoft Exploit, Supply Chain Attacks

The Hacker NewsJun 15 Critical

Check Point Threat Intelligence Report – 15 June 2026

Check Point ResearchJun 15 High

FBI dismantles China-based Outsider phishing-kit operation; $1.9B in losses

CyberScoopJun 12

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