Analysis: Currently, approximately 6.04 million bitcoins are exposed to 'quantum risk' BlockBeats news, on May 22nd, analyst Murphy (@ Murphychen888) posted on social media that "static quantum exposure" refers to circulating bitcoins whose public keys have been displayed on the chain and theoretically can be used by future quantum computers with sufficient capabilities to use the Shor algorithm to deduce the corresponding private key. According to Glassnode data, there are currently approximately 6.04 million bitcoins in this type of quantum risk exposure state, including structural exposure involving approximately 1.92 million bitcoins. This type of risk mainly stems from script designs such as P2PK, naked multi signature, and Taproot, which directly display the public key during the transaction process. Among them, the Bitcoin mined during the era of Satoshi Nakamoto is considered the most difficult part to securely migrate due to its unique address format and script structure. Operational exposure, with a larger scale involving approximately 4.12 million bitcoins. This type of risk is mainly caused by address reuse behavior, where users use the same address multiple times to receive or send Bitcoin, resulting in the public key being made public after the first spend. Although this type of risk exposure is relatively high, it is theoretically easier to improve through standardized management as it originates from users' operational habits. Among the total exposure mentioned above, approximately 1.66 million bitcoins are related to trading platforms. Based on the marked balances, only about 5% of Coinbase's assets have quantum risk exposure, while other trading platforms and known entities generally have higher risk exposure. It should be pointed out that the above analysis is not aimed at ranking the risks of various entities, nor is it a specific timetable for predicting the arrival of quantum technology threats. The core of this is to illustrate that the vast majority of quantum risk exposures in the current Bitcoin ecosystem are management level issues, which can be effectively controlled or even significantly reduced through operational measures such as avoiding address reuse and standardizing wallet usage processes. [Original link]