"Ledger cuts ties with partner over exposed seed phrases."Oct 14, 2026

Ledger said its security team found a hardware implant in devices sold by Southeast Asian reseller CryptoBellas. The implant captures a device’s 24-word recovery phrase during setup and transmits it over a cellular connection. Ledger said it does not alter the device’s secure element, transactions, or signatures, and that it has no indication its own systems were compromised.

On-chain researchers estimated that losses linked to the devices exceeded $86 million across Bitcoin, Ethereum, and Tron, but Ledger said the estimate is unverified. After a customer in Germany reported an implant, MediaMarkt Saturn removed Ledger devices from its stores and online shop on October 13. Trezor and Wonky also ended their relationships with CryptoBellas, turning the incident into a broader retail and partner response.

Strive bought 3,311 Bitcoin over the past week, according to an SEC filing, bringing its treasury to 32,773 Bitcoin as of October 9. CEO Matt Cole said he wants the company to end the year as the second-largest public Bitcoin holder. Strive was about 11,000 Bitcoin behind MetaPlanet and, if MetaPlanet makes no further purchases, would need to add roughly 990 Bitcoin a week to catch up.

Interactive Brokers added Ethereum staking for eligible clients through its client portal, with services provided by Zero Hash. Rewards are credited as additional staked Ethereum. Separately, Morgan Stanley reportedly sought a national trust bank charter that would allow it to custody digital assets and offer staking and trading to investment clients.

Coinbase called on the Bitcoin community to begin preparing for post-quantum security, warning that the work would be complex and take years. Its recommendations include designing systems so signature schemes can be changed without a full redesign, and adding protection for active wallets in stages. Coinbase also urged consideration of both stateful and stateless signature options, including at least one compatible with multi-party computation for institutional custody. The exchange said it holds about 5% of all Bitcoin.

DRW and Merix completed what S&P Dow Jones Indices and Kaiko described as the first over-the-counter derivative referencing a fully tokenized index. The total return swap ran on Derivnex’s platform on the Canton network and referenced the S&P iBoxx USD Liquid Investment Grade Index. S&P said the deal demonstrates how blockchain infrastructure could connect benchmark data, licensing, and derivatives management.