Binance Launches Withdrawal Lock to Protect Users From Physical Coercion Attacks
Binance is rolling out a voluntary withdrawal lock feature on May 4 that prevents users from sending funds out of their accounts for a defined period, CoinDesk reported. The feature is designed to protect users from so-called wrench attacks, incidents in which criminals physically coerce victims into authorizing cryptocurrency transfers under threat of violence.
The lock operates as an internal account policy rather than a cryptographic constraint, meaning it is enforced at the exchange level and cannot be overridden by an attacker who gains access to a user’s private credentials alone.
How the Withdrawal Lock Works
Users who activate the feature set a time delay during which no withdrawal requests can be processed. If an attacker forces a victim to initiate a transfer, the lock prevents the funds from leaving the account until the lock period expires.
Binance did not specify the range of time periods available for the lock at launch. The measure complements existing security tools such as two-factor authentication and address whitelisting.
Because the lock is an exchange-side policy rather than a blockchain-level restriction, it applies only to funds held in Binance custody and does not extend to assets held in self-custody wallets.
Background
Wrench attacks, a term borrowed from a webcomic about cryptography, have grown more frequent as public knowledge of cryptocurrency wealth has spread. High-profile cases in France in early 2026 involved family members of cryptocurrency executives being kidnapped for ransom, prompting an emergency meeting between French authorities and industry leaders in late March 2026.
Several exchanges had already introduced cooling-off periods for large withdrawals, but Binance’s feature is among the more explicit responses to the physical threat vector specifically. Binance remains the world’s largest cryptocurrency exchange by trading volume, processing hundreds of billions of dollars in transactions monthly.
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Outlook
The withdrawal lock does not address threats against users who hold assets in self-custody, which remains the dominant risk vector for high-net-worth holders.
Security researchers argue that exchange-level protections are useful for retail users but do nothing for the growing population of individuals managing large wallets independently. Binance has not said whether the lock will be enabled by default or remain opt-in.
Competing exchanges may face pressure to introduce similar features following the announcement.
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