Security researchers discovered a critical vulnerability in the Aptos blockchain that could have compromised billions in crypto assets before developers patched it. Using a modest server costing roughly $3,000, the ethical hackers achieved a near-90% success rate at breaking one of the network's core security guarantees, with individual attack costs running only into the hundreds of dollars. The flaw exposed how relatively inexpensive resources could undermine protections that safeguard user funds and network integrity across the platform. Aptos, a proof-of-stake blockchain, has since addressed the issue, mitigating the potential risk to assets that the researchers estimated could reach as high as $70 billion. The findings highlight ongoing concerns about the resilience of major blockchain networks and underscore the value of independent security research in identifying weaknesses before malicious actors can exploit them.
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