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Every signature scheme currently running on a public blockchain depends on the hardness of the discrete logarithm problem over elliptic curves.
Shor's algorithm dissolves that hardness once a quantum computer reaches sufficient qubit scale, meaning every transaction ever signed becomes retroactively vulnerable to key recovery.
NEAR Protocol's 2.13 mainnet upgrade puts a NIST-approved post-quantum signature scheme into production, positioning $NEAR as one of the first blockchains to close that exposure at the protocol level.
What the NIST approval means for the stack NIST's post-quantum standardization process was built to identify algorithms that remain hard for both classical and quantum adversaries.
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