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Crypto

Bitcoin quantum transition focuses on \'abandoned assets\' as Coinbase proposes three-step response

Coinbase has suggested a compromise for handling bitcoin left unmoved during a shift to quantum-resistant addresses, after estimating that as many as about 7 million BTC could be vulnerable to quantum attacks. An independent advisory report said adding quantum-resistant signatures is a solvable technical task, but the main issue is how to treat assets not transferred by a deadline. It outlined three measures, including throttling transfers from older addresses and phased retirement of legacy schemes.

Crypto

Lawsuit in New York seeks control of 3.7 million dormant bitcoin including Satoshi addresses

A lawsuit has been filed in a New York court seeking transfer of ownership of long-dormant bitcoin wallets, including addresses linked to Satoshi Nakamoto and the Mt. Gox hack. The plaintiff, using the name Noah Doe, argues under New York’s lost property law that inactive bitcoin should be treated as abandoned. The case targets 39,069 wallets said to hold about 3.7 million bitcoin, valued at about $290 billion, but industry figures question whether any ruling could be enforced.

Crypto

30 percent of bitcoin at risk of quantum exposure, Glassnode says address reuse key

About 30.2 percent of issued bitcoin is stored in addresses at risk of quantum exposure, with a larger share stemming from how users and custodians manage addresses rather than from protocol structure, according to an estimate cited in a report. Glassnode put quantum-exposed bitcoin at 4.12 million BTC, more than twice the 1.92 million BTC it classified as structurally exposed due to older script types. Exchange wallets were singled out as a major source of operational exposure.