Tag: Bitcoin consensus

How Proof of Work Stops Sybil Attacks in Blockchain Networks

Posted by Victoria McGovern

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22
Mar

How Proof of Work Stops Sybil Attacks in Blockchain Networks

Proof of Work stops Sybil attacks by making network participation expensive. Bitcoin's 650 EH/s hash rate and $12.7B attack cost make fraud economically impossible, securing high-value transactions since 2009.

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