In response to the threat of quantum computing, Jameson Lopp, co-founder of Casa, and five other developers recently jointly released a BIP draft proposing a phased elimination of all legacy addresses protected by ECDSA (Elliptic Curve Digital Signature Algorithm) and Schnorr signatures to enhance the security of the Bitcoin network.
Source: Github
On July 14, the proposal released on GitHub warned that approximately 25% of the current Bitcoin (including the 1 million BTC suspected to be held by Satoshi Nakamoto) faces the risk of quantum attacks due to public key exposure. Once practical quantum computers are available (estimated as early as 2027-2030), these assets may be stolen.