GAMEE Hack
Incident Overview
Animoca Brands' GAMEE token exploited on Polygon chain, resulting in a loss of 600,000,000 GMEE tokens due to compromised deployer key.
On January 22,2024, Animoca Brands' GAMEE token was exploited on the Polygon chain due to unauthorized GitLab access and a compromised deployer key. The attacker accessed the GitLab repository containing the private key and exploited a vulnerability in the recoverERC721s() function, transferring 600 million GMEE tokens.The polygonscan explorer showed at the time when tokens were stole they were worth 16,352,814.The stolen tokens were swapped for MATIC and a portion was bridged to the Ethereum chain, then deposited into Tornado Cash, and 199.7 million of GMEE tokens are still at the scammers address.
Attacker Address:
https://polygonscan.com/address/0x16afA519…471b86
Funds Holder as of Jan 26, 2024:
https://polygonscan.com/address/0x44Ac627d…93F179
Malicious Transactions:
https://polygonscan.com/tx/0x70f7e037…861458
https://polygonscan.com/tx/0x9bf7dbf0…42b365
https://polygonscan.com/tx/0x2340cfde…45b849
Tornado Cash Deposits:
https://etherscan.io/tx/0xe8b5babb…95f426
https://etherscan.io/tx/0x7ff28241…1906f4
Incident Report
Protocol Information
Market Context at Time of Hack
What the Attacker Needed to Succeed
Understanding the prerequisites for this type of attack helps auditors identify protocols that are most at risk and helps developers build better defenses.
What Auditors Should Check
If you're auditing a protocol with similar architecture to GAMEE, these are the critical security checks that could have prevented this incident (January 2024).
- Verify all logic paths related to Access Control are guarded by proper access controls and input validation - see the Access Control Attacks attack class for patterns
- Review privileged functions (owner, admin, governance) for potential abuse vectors - centralization risks should be documented and bounded with timelocks or multi-sigs
Master these auditing techniques with hands-on labs and real exploit scenarios in the Smart Contract Hacking course.
Free TrialRelated Attack Classes
The technique used in this hack maps to these vulnerability classes in our security curriculum:
Sources & References
- 01
-
02
Web Archive https://archive.ph/wip/lxbtJ
Learn to Prevent the Next GAMEE
The GAMEE hack is one of many attacks that skilled auditors are trained to detect before deployment. Master real exploit patterns and defense techniques with hands-on Web3 security training.