Tens of thousands of Android devices have been shipped to end-users with backdoored firmware, according to a warning from cybersecurity vendor Human Security.
As part of the global cybercriminal operation called
BadBox (PDF), Human Security found a threat actor relied on supply chain compromise to infect the firmware of more than 70,000 Android smartphones, CTV boxes, and tablet devices with the Triada malware.
The infected devices come from at least one Chinese manufacturer but, before they are delivered to resellers, physical retail stores, and e-commerce warehouses, a backdoor was injected into their firmware. “Products known to contain the backdoor have been found on public school networks throughout the United States,” Human says.