Thinking about selling your Echo Dot—or any IoT device? Read this first
Researchers from Northeastern University bought 86 used devices on eBay and at flea markets over a span of 16 months. They first examined the purchased devices to see which ones had been factory reset and which hadn’t.
Their first surprise: 61 percent of them had not been reset. Without a reset, recovering the previous owners’ Wi-Fi passwords, router MAC addresses, Amazon account credentials, and information about connected devices was a relatively easy process.
The next surprise came when the researchers disassembled the devices and forensically examined the contents stored in their memory.