Barnes & Noble has joined the list of Android device vendors who sold smartphones and tablets affected by the Adups backdoor. The company’s latest tablet, the NOOK 7 (Barnes & Noble BNTV450), includes a component manufactured by the Shanghai AduPS Technology Co. Ltd. Chinese company. The AduPs FOTA system, which was an over-the-air update system for other firmware components, has been since then rebranded as a backdoor by the infosec community.
Source: https://www.bleepingcomputer.com/news/security/adups-backdoor-found-in-latest-barnes-and-noble-nook-tablet/