Suspected thefts involving Ledger hardware wallets are approaching $90 million, with blockchain investigators tracing funds across Bitcoin, Ethereum and Tron. Tether has frozen USDT linked to the incident, restricting transfers from identified addresses but not automatically returning funds to affected users. Ledger said on Oct. 9 that it was investigating reports involving devices purchased from CryptoBilis, an authorized reseller in Southeast Asia, and paused the distributor's sales and shipments as a precaution. The company advised recent buyers not to initialize unused devices and urged configured-device owners to consider moving assets to a new Ledger device with a fresh recovery phrase. The cause remains unconfirmed. Investigators are examining possible counterfeit hardware, physical tampering or other attack methods, while Ledger's security documentation says its Genuine Check may not detect modifications outside an intact Secure Element. MistTrack estimated losses near $90 million after an earlier estimate above $86 million, but the figures have not been independently verified. Frozen USDT could help contain the losses, although recovery depends on further investigation and coordination because the incident involves multiple networks and assets that Tether cannot directly freeze.