PMX Hack
Incident Overview
PMX's Polycule trading bot on Polygon was exploited due to a contract vulnerability, resulting in approximately $230,000 stolen from user funds. The vulnerability source has been identified with patches and audits scheduled for release by the weekend, and PMX committed to full compensation of affected users through its treasury.
The attack targeted a vulnerability within PMX's Polycule trading bot smart contract on the Polygon network. The specific nature of the contract vulnerability has not been publicly disclosed, but the exploit allowed the attacker to drain approximately $230,000 in user funds from the bot's contract. PMX immediately took the bot offline to prevent further exploitation and initiated a comprehensive security review to identify the vulnerability's root cause.
The team confirmed the vulnerability source has been located and is developing patches with accompanying security audits scheduled for deployment by the weekend. Once the system is restored with proper security measures, affected users on Polygon will have their balances restored to pre-attack levels through PMX treasury funds.
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 PMX, these are the critical security checks that could have prevented this incident (January 2026).
- Verify all logic paths related to Other are guarded by proper access controls and input validation
- 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.
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