Polygon Labs patched security vulnerabilities on its proof-of-stake network through two hard forks named Austin and Kyoto, initially deployed privately before being publicly disclosed. The Austin fork closed two denial-of-service paths in block processing, while Kyoto addressed a more severe flaw that could have forced the entire validator set into costly, coordinated work via a single crafted transaction. No exploitation on mainnet was observed, with all fixes deployed proactively. The network’s POL token was trading around $0.09983 on Sunday, down 2.3% over 24 hours and 6.8% over the week, for a market capitalization of approximately $1.07 billion.
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