31.2% of Bitcoin $BTC is leaving public keys exposed on the blockchain. This figure is the highest since 2016, revealing a decline in the market’s baseline security awareness.
People talk endlessly about the threat of quantum computing and the importance of privacy, yet the movement of real value on-chain is going backward. Glassnode’s latest data shows that the balance of BTC with exposed public keys due to address reuse has climbed to 4.33 million BTC—more than one-fifth of the circulating supply. Bitcoin’s UTXO model was designed for one-time use: once a private key signs a transaction and reveals the public key, a new address should be used. But more and more holders—even institutions—are using a decentralized ledger like a permanent bank account number.
This is partly due to historical baggage and partly to structural design. Satoshi Nakamoto’s early 1.1 million BTC sit in P2PK scripts, where the public keys are inherently exposed on-chain; Taproot has also resulted in 220,000 exposed BTC. But setting aside these irreversible factors, the exposure of the remaining four million-plus BTC is simply the result of lazy habits.
The differences between exchanges are even more striking. Coinbase’s public-key exposure rate remains around 10%, Binance’s is 83%, and Bitfinex’s reaches 100%. This vast disparity directly reflects generational differences in how their custody systems manage change addresses and move funds between hot and cold wallets. When institutions avoid changing change addresses for convenience, they’re effectively publishing the blueprints to their asset vaults.
Many holders think their funds are safe as long as their private keys aren’t leaked, but exposing a public key dramatically narrows the scope of cryptographic attacks. If collision techniques make a breakthrough in the future, these 6.26 million BTC will be among the first targets. More immediate threats come from the crushing combination of privacy erosion and regulatory scrutiny: with public keys on-chain and tracking tools in play, fund networks and transaction paths can be monitored around the clock.
Migrating addresses is costly for whales and large institutions. It involves reorganizing multisig setups, thawing cold storage, and paying fees that can send on-chain gas costs through the roof. That is precisely why the industry is now intensively discussing large-scale migration plans. The Bitcoin network provides an unlimited supply of new key pairs for free, but what ultimately defeats security is often not the underlying computing power—it’s the human instinct to take the easy route.
#比特币重复使用地址持有433万枚btc
People talk endlessly about the threat of quantum computing and the importance of privacy, yet the movement of real value on-chain is going backward. Glassnode’s latest data shows that the balance of BTC with exposed public keys due to address reuse has climbed to 4.33 million BTC—more than one-fifth of the circulating supply. Bitcoin’s UTXO model was designed for one-time use: once a private key signs a transaction and reveals the public key, a new address should be used. But more and more holders—even institutions—are using a decentralized ledger like a permanent bank account number.
This is partly due to historical baggage and partly to structural design. Satoshi Nakamoto’s early 1.1 million BTC sit in P2PK scripts, where the public keys are inherently exposed on-chain; Taproot has also resulted in 220,000 exposed BTC. But setting aside these irreversible factors, the exposure of the remaining four million-plus BTC is simply the result of lazy habits.
The differences between exchanges are even more striking. Coinbase’s public-key exposure rate remains around 10%, Binance’s is 83%, and Bitfinex’s reaches 100%. This vast disparity directly reflects generational differences in how their custody systems manage change addresses and move funds between hot and cold wallets. When institutions avoid changing change addresses for convenience, they’re effectively publishing the blueprints to their asset vaults.
Many holders think their funds are safe as long as their private keys aren’t leaked, but exposing a public key dramatically narrows the scope of cryptographic attacks. If collision techniques make a breakthrough in the future, these 6.26 million BTC will be among the first targets. More immediate threats come from the crushing combination of privacy erosion and regulatory scrutiny: with public keys on-chain and tracking tools in play, fund networks and transaction paths can be monitored around the clock.
Migrating addresses is costly for whales and large institutions. It involves reorganizing multisig setups, thawing cold storage, and paying fees that can send on-chain gas costs through the roof. That is precisely why the industry is now intensively discussing large-scale migration plans. The Bitcoin network provides an unlimited supply of new key pairs for free, but what ultimately defeats security is often not the underlying computing power—it’s the human instinct to take the easy route.
#比特币重复使用地址持有433万枚btc