The debate over BTC address reuse heats up | A visible public key does not mean a private key has been exposed | Manage your wallet before discussing trades
My view is this: don’t panic-sell just because of the words “quantum threat,” but don’t dismiss address management as an irrelevant academic discussion either. Binance Square’s trending list shows #ReusedBitcoinAddressesHold4.33MBTC. An on-chain estimate published on October 8 by a Glassnode co-founder says that about 4.33 million BTC are in a state where their public keys are visible due to address reuse, while the broader balance associated with visible public keys is about 6.26 million BTC. This figure classifies on-chain outputs and address behavior according to their methodology; it does not mean that “4.33 million BTC have been stolen,” nor is it evidence that quantum computers can crack them immediately. Glassnode’s original research also clearly distinguishes structural exposure from operational exposure caused by reuse. Bitcoin developer documentation has long recommended using a new address to receive funds, partly to reduce the risk of transactions being linked and compromising privacy.
Why should traders pay attention to this? If the market mistakes a long-term cryptographic migration issue for an active theft incident, it could trigger volatility. But what really needs to be monitored is whether wallets and custodians reduce address reuse, and how future standards are designed and implemented. A visible public key is entirely different from an exposed private key, and the research gives no timeline for a practical attack. Moving assets also involves signatures, fees, custody procedures, and user education—it can’t be solved with a single viral post. I’d rather treat this as a due-diligence checklist for asset custody than as a direct explanation for a day’s price moves.
How has the market reacted so far? When I checked BTC/USD on Kraken, the current price was around $82,694, with an intraday open of about $81,684, a low of about $81,543, and a high of about $83,463. After rebounding from the low, the price was still below the intraday high. I have no evidence that this move was caused by the public-key discussion. We should avoid forcing a causal link between two events that happened at the same time. The key short-term levels are whether price can break back above around $83,460 and whether it can hold around $81,540. If it breaks below that level and fails to recover quickly, I’d abandon my short-term recovery view. Conversely, holding above the previous high would only show that buyers temporarily have the upper hand; it would not prove that the long-term security debate has been resolved.
If I were trading this myself, I wouldn’t buy or sell BTC solely because of this research. I’d only consider a small long position in spot, in the direction of the trend. The trigger would be a four-hour close above $83,460, followed by a retest that holds above $83,000. I’d use no more than 2% of my total capital, with no leverage. The first target would be $85,000, where I’d reduce the position by half; the second target would be $86,500, where I’d close the rest. I’d place the stop at $81,500 and exit the entire position if it’s hit. I’d also exit early if there’s no meaningful follow-through within two days, or if a credible first-hand security incident changes my risk assessment. If the conditions are never met, I’d stay out of the market and check whether I’ve reused any receiving addresses, and whether my backups and wallet source are reliable. Long-term risks shouldn’t be exaggerated into a story about liquidations today, and a short-term rebound shouldn’t distract from basic security hygiene.
#ReusedBitcoinAddressesHold4.33MBTC #BTC
This is solely my personal market observation and does not constitute investment advice.