https://www.bleepingcomputer.com/news/security/gigaset-android-phones-infected-by-malware-via-hacked-update-server/

Owners of Gigaset Android phones have been repeatedly infected with malware since the end of March after threat actors compromised the vendor's update server in a supply-chain attack.

Gigaset is a German manufacturer of telecommunications devices, including a series of smartphones running the Android operating system.