Your Zbtlink Router's Backdoor Is More Permanent Than Your New Year's Resolution

Security researchers have discovered a persistent backdoor in Zbtlink routers that survives reboots and factory resets, allowing attackers to maintain permanent access to affected devices. Standard remediation steps like resetting the router won't eliminate the threat, making this particularly difficult to mitigate. Users of Zbtlink routers should check for firmware updates and consider replacing affected units if no patch is available.