Quantum Ultimatum: Glassnode Warns of Potential Threat to 6 Million BTC Worth $470 Billion

5/21/2026, 11:21 AMБогдан Семичев

The global crypto community is deeply engaged in a debate regarding the potential vulnerability of the world's first cryptocurrency to developing quantum technologies. According to a recent in-depth report from the flagship analytics firm Glassnode, nearly one in three mined coins on the blockchain is already vulnerable. Over 30 percent of the market supply, equivalent to more than six million bitcoins with a total value of approximately four hundred and seventy billion dollars, is now at risk of hacking.

Previously, investors dismissed such concerns as purely theoretical, but the situation sharply intensified following the publication of a major report by Google this spring. The American tech giants presented detailed algorithms that could dramatically reduce the cost of decrypting the classic cryptographic keys that secure Bitcoin and Ethereum. Researchers have revised previous forecasts and reached the alarming conclusion that computing machines with the necessary power could be created by major technology holders by the end of this decade, not the middle of the next. The essence of the potential attack is that a quantum system could quickly calculate a private key based on public data from wallets that have already somehow secured their public address in the distributed ledger.

Glassnode specialists divide the identified risks into two main segments, classifying them as structural and operational exposure of digital assets. Structural risk affects approximately ten percent of the supply and is directly related to the specific code architecture of early Satoshi Nakamoto addresses, older multisig systems, and modern Taproot addresses, where the public key is publicly accessible by default. On the other hand, operational exposure, which covers over twenty percent of coins, is caused by the simple carelessness of users and crypto exchanges. Using the same address for multiple transactions for convenience leads to the accumulation of observable traces in the blockchain, significantly facilitating the potential work of future decryption algorithms.

An analysis of the distribution of vulnerable coins on centralized trading platforms revealed a huge and alarming gap in the security architecture of key infrastructure players. While the American exchange Coinbase demonstrates exemplary standards, leaving only five percent of client funds vulnerable, its main competitor Binance has a critical 85 percent, and Bitfinex has recorded 100% operational insecurity. Interestingly, unlike commercial platforms and funds like Robinhood or Grayscale, government reserves of various countries are managed with the utmost professionalism. Government wallets in the US, UK, and El Salvador are completely protected from such threats, maintaining zero exposure for many years.

Despite these alarming figures, the authors of the study urge market participants to refrain from panic, as the published data does not signal an immediate collapse, but rather an indicator of the storage architecture. Meanwhile, within the Bitcoin community itself, a clear split has emerged regarding the solutions to the looming problem. Some developers are pushing for the rapid, voluntary implementation of advanced post-quantum cryptography, while the radical wing is proposing a preemptive and forced freezing of all potentially dangerous old addresses until the protocol's overall security system is fully modernized.

Popular news

Quantum Ultimatum: Glassnode Warns of Potential Threat to 6 Million BTC Worth $470 Billion | News