A joint report by Odaily, Ark Invest, and Unchained indicates that while most of the Bitcoin supply is secure against quantum computing breakthroughs, approximately 34.6% remains potentially at risk. Threatened coins include about 5 million BTC (25% of the total supply) that could be migrated due to address reuse, about 1.7 million BTC (8.6%) held in early P2PK addresses, and about 200,000 BTC (about 1%) affected by P2TR address types. These funds could be at risk of theft if quantum computers can break Bitcoin's elliptic curve cryptography (ECC), but this stage is expected to be several years away. Ark Invest considers this a "long-term risk," therefore the Bitcoin community has ample time to research and implement quantum safeguards. (Cointelegraph)