Syscoin has paused its bridge after a validation issue created an unauthorized output of about 5 billion SYS on the network’s UTXO side. The preliminary Syscoin postmortem said the bridge relay path incorrectly accepted or interpreted a transaction proof, causing the bridge system to treat the transaction as valid and create the unauthorized SYS output through the affected bridge path. The team said the bridge remains paused while it investigates, finalizes a fix and works out how to rectify the unauthorized output.