I recently switched ISPs, and my new ISP sent a new router/wi-fi unit. My old ISP doesn't want the old equipment back. I am now planning on taking it to an electronic waste recycling point.
But could there be any sensitive data stored on the devices? Caches or logs perhaps? If so, can I wipe them?
The devices are a BT Openreach branded "ECI Telecom" VDSL modem and a Plusnet branded Technicolor TG582n wi-fi router.