AirGap security considerations
Physical-access risks, older hardware and software maintenance.
Debate over whether dedicated offline phones should replace hardware wallets for crypto self-custody.
Physical-access risks, older hardware and software maintenance.
Recommends replacing a hardware wallet with an offline phone.
Contrasting views on a dedicated phone used for QR signing.
Private-key isolation while communicating with an online host.
Expresses skepticism; a brief reaction rather than a technical analysis.
Checking transaction details independently of the online computer.
Hardware wallet maker Ledger confirmed that one device purchased from a Southeast Asian reseller contained an unauthorized hardware implant, following reports of crypto losses totaling approximately $86 million from users who bought from the reseller.
Explains malicious-input and firmware risks across communication methods.
Qualified agreement, with continuing hardware, OS and seed-generation risks.
How a dedicated offline phone signs transactions through QR codes.
Hardware wallet maker Ledger is investigating reports that customers in Southeast Asia who purchased devices from authorized reseller CryptoBilis have lost funds, with on-chain investigators estimating losses near $86-90 million across Bitcoin, Ethereum, and Tron. Ledger has asked CryptoBilis to pause sales and shipments while the investigation continues.
Network isolation, transaction display, hardware choice and privacy.
Discussion of offline signing, key protection and practical tradeoffs.