White hat hacker Gerhard Wagner has earned $2 million after reporting a solution to a potentially costly “double-spend” bug on the Polygon network. In an Oct. 21 blog post from Immunefi, a security service that helps facilitate bug reports in decentralized finance projects, Polygon network’s Plasma Bridge was at risk of having $850 million removed by a knowledgeable hacker. According to the project, the vulnerability would have allowed attackers to exit their burn transaction from the bridge up to 223 times, quickly turning an amount like $4,500 into $1 million profi. Immunefi reported the double-spend exploit worked ... (full story)