Singapore's police force said hardware wallets tampered with before sale have cost users in the city-state at least $2.7 million, or S$3.5 million. The advisory went out on Wednesday, Oct. 28.
Police said they identified at least two cases since Sept. 10 involving “malicious hardware components in Ledger wallets purchased from some retail stores in Singapore.”
One of those affected was Mark Karpeles, the former chief executive of failed exchange Mt. Gox, who said he bought a tampered Ledger Flex device at Singapore's airport.
Ledger issued a public alert about the issue on Oct. 9 and suspended sales of its devices in seven jurisdictions on Oct. 13.
The full scope of affected devices remains unclear, and the investigation by police and Ledger is ongoing.
