Prediction market platform Polymarket has officially announced that trading has been fully restored. It also reiterated that all traders affected by the frontend supply chain breach will receive full compensation.

The root cause of this security incident was a breach of third-party monitoring provider DebugBear. Malicious scripts were injected into pages to steal users’ session credentials, resulting in positions being sold without authorization and assets being stolen from nearly 1,000 user accounts. After the incident, the platform immediately suspended trading and investigated the vulnerability. It also handed over case materials to law enforcement and worked with on-chain investigation teams to trace the POL and stablecoin funds moved by the hackers.

Polymarket says the vulnerability has been fixed. Multiple safeguards have been added, including frontend script validation, blocking suspicious signatures, and risk controls for unusual account activity, reducing the likelihood of similar frontend supply-chain attacks happening again. The compensation plan will verify each affected user’s losses and reimburse them based on the state of their assets before they were stolen. The platform will later open a claims channel and publish updates on the compensation process.

News of the fix has eased short-term panic around POL somewhat. However, the market remains cautious. On the one hand, the 28.64 million POL that hackers previously converted and transferred out is still moving on-chain; if it later reaches exchanges, it could still create selling pressure. On the other hand, two similar incidents involving third-party script intrusions have exposed weaknesses in the platform’s frontend security. Rebuilding trust over the long term will take time.

Analysts caution that even if the platform promises full compensation, users should pay attention to the claims process, deadlines, and documentation requirements. They should also make a habit of regularly revoking wallet permissions and staying alert to signature requests from unfamiliar webpages. Prediction-market tokens are highly volatile, and short-term price movements can easily be affected by news such as fund tracking and progress on compensation.