Mark Karpeles, former CEO of Mt Gox, is developing a low-cost detector to check whether Ledger hardware crypto wallets contain malicious components. The move follows reports of tampered Ledger devices carrying parts that could steal 24-word recovery phrases, raising supply-chain security concerns. Karpeles says the device would use low-power wireless signals and resonance tests, and he may publish PCB designs and specifications. No working unit or independent verification has been released.

South Korean lawmaker Kim Nam-kuk called for revamping mobile telecom service quality assessments to go beyond download speeds and reflect user-perceived quality such as data dropouts, latency and connection stability. He said policies should better reflect service continuity and reliability as 5G use becomes commonplace. Research by ETRI found users prioritised service continuity and connection stability, while dropouts and delays increased dissatisfaction. The science ministry has begun adding service-based speed metrics and plans broader indicators.