Hardware wallet maker Trezor has raised the maximum length of optional passphrases from 50 to 128 characters, available in Trezor Suite with updated firmware, while older firmware still caps passphrases at 50 characters. The change follows the July Coldcard attacks, when a firmware flaw led some devices to generate recovery phrases with insufficient randomness, and strong, unique passphrases protected some affected users. Separately, Trezor advised customers who bought wallets from former reseller CryptoBilis since March to move their funds, after an Indonesian customer reported a suspected implant in a Trezor Safe 5 that could capture recovery phrases; Trezor said it had not examined the device and had received no reports of related losses.
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BTC/USDT
• NeutralBitcoin
Relevance: low
| Market | Crypto |
|---|---|
| Exchange | Binance |
| Sector | Layer 1 |
| Market cap | $1.6T |
| Close on 11/01/2026 | 78,354.00 |
| Change that session | +1.00% |
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- Trezor Warns CryptoBilis Buyers After Report of Hardware Implant in Safe 5
Trezor said it received a credible report of a hardware implant in a Safe 5 bought from reseller CryptoBilis in August 2026, though it has not yet examined the device. The reported implant reads the wallet backup from the screen and sends it over a mobile network, similar to Ledger's case, and the details have not been verified by Trezor. Trezor urged anyone who bought its wallets from CryptoBilis since March 2026 to move funds to a new wallet with a new recovery phrase, and said no buyer has reported a loss of funds. Trezor removed CryptoBilis as a reseller on October 9 and has inspected 4 devices bought from it without finding evidence of tampering.
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Trezor will end its reseller authorizations on January 1, 2027 and stop shipping new stock to them, calling it a precaution after supply-chain incidents and saying there is no evidence its devices were compromised. The move follows Ledger's Donjon team finding that wallets sold by Southeast Asian reseller CryptoBilis carried a spy implant that captures recovery phrases from the screen and sends them over LTE. Ledger told anyone who bought from CryptoBilis in the past 90 days not to set up their device, while onchain investigator Specter traced more than $86 million in suspected thefts, a figure Ledger says it has not verified. Trezor says CryptoBilis was already off its seller list and that it has received no reports of tampered devices from that retailer. Separately, a ShipMonk data exposure in August affected Trezor customers, with the total put at 80,689 in September, though Trezor says its devices, private keys and wallet backups were not affected.
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