Interpreted Prediction
Privacy-focused blockchain protocols that use encryption to hide transaction details are at higher risk from quantum threats if that encrypted data is stored on-chain, as it could be harvested now and decrypted later.
AI Evaluation Notes
Based on search results, there is increasing concern and research into quantum computing's potential threat to blockchain security, specifically regarding privacy-focused protocols that store encrypted data on-chain. While a direct exploit hasn't been definitively reported, the prediction aligns with the growing acknowledgement of this potential vulnerability [cite: i].