# Icarus

> As of 2026-07-02, Icarus is a threat actor tracked by Threadlinqs Intelligence across 4 threats spanning supply chain. Also known as Icarus extortion group. ATT&CK coverage spans 33 techniques across 14 tactics in 4 of 4 tracked threats. Most-observed techniques: T1195 (Supply Chain Compromise), T1199 (Trusted Relationship), T1213 (Data from Information Repositories).

- **Tracked threats:** 4
- **Categories:** SUPPLY_CHAIN
- **Also known as:** Icarus extortion group
- **As of:** 2026-07-02

## ATT&CK techniques observed

33 techniques observed across 4 of 4 tracked threats. Tactics: Impact (5), Collection (4), Exfiltration (4), Initial Access (4), Credential Access (3), Discovery (3).

- [T1195](https://intel.threadlinqs.com/technique/T1195) Supply Chain Compromise — Initial Access — observed in 4 of 4 tracked threats
- [T1199](https://intel.threadlinqs.com/technique/T1199) Trusted Relationship — Initial Access — observed in 4 of 4 tracked threats
- [T1213](https://intel.threadlinqs.com/technique/T1213) Data from Information Repositories — Collection — observed in 4 of 4 tracked threats
- [T1526](https://intel.threadlinqs.com/technique/T1526) Cloud Service Discovery — Discovery — observed in 4 of 4 tracked threats
- [T1528](https://intel.threadlinqs.com/technique/T1528) Steal Application Access Token — Credential Access — observed in 4 of 4 tracked threats
- [T1530](https://intel.threadlinqs.com/technique/T1530) Data from Cloud Storage — Collection — observed in 4 of 4 tracked threats
- [T1550](https://intel.threadlinqs.com/technique/T1550) Use Alternate Authentication Material — Lateral Movement — observed in 4 of 4 tracked threats
- [T1059](https://intel.threadlinqs.com/technique/T1059) Command and Scripting Interpreter — Execution — observed in 3 of 4 tracked threats
- [T1071](https://intel.threadlinqs.com/technique/T1071) Application Layer Protocol — Command and Control — observed in 3 of 4 tracked threats
- [T1078](https://intel.threadlinqs.com/technique/T1078) Valid Accounts — Initial Access — observed in 3 of 4 tracked threats
- [T1552](https://intel.threadlinqs.com/technique/T1552) Unsecured Credentials — Credential Access — observed in 3 of 4 tracked threats
- [T1567](https://intel.threadlinqs.com/technique/T1567) Exfiltration Over Web Service — Exfiltration — observed in 3 of 4 tracked threats
- [T1583](https://intel.threadlinqs.com/technique/T1583) Acquire Infrastructure — Resource Development — observed in 3 of 4 tracked threats
- [T1020](https://intel.threadlinqs.com/technique/T1020) Automated Exfiltration — Exfiltration — observed in 2 of 4 tracked threats
- [T1087](https://intel.threadlinqs.com/technique/T1087) Account Discovery — Discovery — observed in 2 of 4 tracked threats

## Tracked threats

- [Klue Supply Chain Breach: OAuth Token Harvesting & Salesforce CRM Data Exfiltration](https://intel.threadlinqs.com/threat/TL-2026-0976) — CRITICAL
- [Klue SaaS Integration Platform OAuth Token Compromise – Multi-Organization Salesforce CRM Access](https://intel.threadlinqs.com/threat/TL-2026-0992) — CRITICAL
- [LastPass Customer CRM Data Exposed via Klue OAuth Token Theft (Icarus Salesforce Supply-Chain Campaign)](https://intel.threadlinqs.com/threat/TL-2026-0926) — MEDIUM
- [Klue OAuth Supply-Chain Breach Enables 'Icarus' Salesforce CRM Data-Theft Extortion Campaign](https://intel.threadlinqs.com/threat/TL-2026-0853) — HIGH

## Full data

Infrastructure, IOC values and detection queries (Splunk SPL / Microsoft KQL / Sigma) require the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp

Canonical: https://intel.threadlinqs.com/actor/Icarus