https://www.bleepingcomputer.com/news/security/hackers-breach-company-s-mdm-server-to-spread-android-malware/

Attackers infected more than 75% of a multinational conglomerate's managed Android devices with the Cerberus banking trojan using the company’s compromised Mobile Device Manager (MDM) server.

MDM (also known as Enterprise Mobility Management - EMM) is a mechanism used by companies of all sizes to enroll enterprise-owned devices with the same management server to make it easier to perform tasks such as delivering company-wide device configurations, deploying applications, and more.