~/talk

The Heist: Chasing an Advanced Crypto Attacker Across the Multi-cloud

Talkat BSidesSF 2026 · on Saturday, 2026-03-21· at 11:15· AMC IMAX, AMC at Metreon· [security, cloud-infrastructure]
links:none on file
slides:none on file

A multi‑cloud intrusion steals about $107M over seven months, culminating in an $80M heist; attackers social‑engineer the help desk to reset an approver’s Entra MFA, extract a developer’s GitHub PAT from a corporate password manager, use a malicious GitHub Actions PR to create an IAM secops user, then run AWS SSM commands on the hot‑wallet EC2 to execute the legit signing script and route funds through BitGo and mixers. Detection gaps across services enable stealthy, automated laundering.

AI-written summary · about

  1. 0:00Introduction and background
  2. 4:34Discovery of the $18 million theft
  3. 7:24Help desk compromise revealed
  4. 13:24Expanding scope to $107 million
  5. 15:51AWS SSM compromise investigation
  6. 18:00GitHub secrets and compromised PAT
  7. 21:50Pull request attack vector
  8. 24:15Password manager compromise
  9. 28:49Password reset timeline analysis
  10. 36:11Reconnaissance via email search
  11. 39:38Full attack timeline reconstruction
  12. 41:03Key takeaways and lessons learned
  13. 42:49Q&A session
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