Hardware wallet manufacturer Ledger on Thursday released a statement detailing previously reported incidents of user funds being stolen, stating that a "highly organized" criminal group spent millions of dollars to tamper with Ledger devices and reintroduce them into the supply chain, thereby stealing user funds. The group built a complete logistical and technical infrastructure, patiently waited, and then emptied wallets in a coordinated operation. Ledger emphasized that there were no flaws in its chips, operating system, or servers, and its systems were not compromised; the problem lay in the distribution channels after the devices left its control. Blockchain investigator Specter estimates that losses from these tampered devices have reached $86 million. Ledger has suspended sales through authorized dealers in Southeast Asia and Hong Kong and is cooperating with law enforcement to trace the funds and dismantle the attackers' infrastructure.