First and second place included a bug on the software node level of layer 2 scaling solution Optimism and a vulnerability on the key generation level of vanity address generator Profanity. The Optimism bug, if exploited, causes “an infinite mint” of Optimism’s native token OP that “would collapse many (if not all) optimism protocols,” while the vulnerability on Profanity put at least $160 million at risk, said Ashiq Amien, one of the six panelists on the project.