Ledger Knew of Wallet Implants Months Before October Thefts
Joe Grand’s research and a 2025 Reddit warning document Ledger wallet implants months before October’s theft investigation. Here is the verified timeline.
Proof-of-authority - Page 2
Proof-of-authority is a blockchain consensus mechanism where a limited number of trusted validators are authorized to create new blocks and confirm transactions. Validators’ identities are known and verified, which reduces the need for energy-intensive computations. This system prioritizes speed and efficiency over decentralization, making it suitable for private or consortium blockchains. Validators are incentivized to act honestly, as misbehavior can damage their reputation. Proof-of-authority provides fast, secure, and reliable transaction processing for networks with trusted participants.
Latest Proof-of-authority News
Buyer Reports Ledger Wallet Implants From Two MediaMarkt Stores
A Ledger buyer says wallets from two MediaMarkt stores contained similar implants, raising supply-chain questions without proving a Europe-wide compromise.
CryptoBilis Former Founders Say They Handed Over Control in March
CryptoBilis’s former founders outline their ownership timeline as Ledger investigates hardware tampering and maintains warnings for the reseller’s customers.
Ledger Spy Implant Reported in Wallet Bought in Europe
A Ledger device reportedly bought from an official European reseller shows an apparent implant. Mark Karpelès shares a Nano X inspection video.
CZ Shares 2026 Crypto Security Guide for Wallets and Exchange Accounts
Changpeng Zhao outlines how to protect wallet keys and exchange accounts, with recovery backups and inheritance planning central to his 2026 guide.
Ledger Confirms Hardware Implant as CryptoBilis Halts Sales
Ledger confirms a hardware implant in one affected user’s device, updates CryptoBilis buyer guidance and investigates the scope of reported thefts.
XRP Ledger Reveals Decade-Old Bug That Could Create XRP
XRP Ledger disclosed a payment-engine flaw dating to 2015 that could create spendable XRP; a September patch closed it, with no known public-network exploitation.
Ledger Nano X Implants Target Recovery Words, Researchers Say
Tibane Labs details hidden implants in Ledger Nano X wallets that capture recovery words, while a link to the CryptoBilis investigation remains unproven.
Ledger Warns CryptoBilis Buyers as Analyst Fears Wider Losses
Ledger has asked CryptoBilis to pause sales as Darkfost warns losses could exceed an early $86 million estimate; the cause remains unconfirmed.
Analyst Flags $86 Million in Suspected Theft From Ledger Users
Specter has traced suspected theft addresses across Bitcoin, Ethereum and TRON, but the loss estimate, victim count and cause remain unverified.