Ethereum-based layer two scaling network Polygon has quietly fixed a vulnerability putting almost $24 billion worth of its native token MATIC at risk. The “critical” vulnerability in the network’s Proof-of-Stake (PoS) Genesis contract was highlighted by two whitehat hackers on Dec. 3 and Dec. 4 via bug bounty hosting platform Immunefi. Fortunately, the bug was resolved at Block #22156660 via an “Emergency Bor Upgrade” to the Mainnet on Dec. 5 at around 7:27 am UTC.