I think part of the reason why Google even decided to make its own phones is because of security. If you read about their BeyondCorp enterprise security architecture, it emphasizes smartphone security quite a bit and how devices without timely updates, for instance, will be banned from the network (Google's own internal network that is).
Given how bad most Android OEMs are at keeping their devices up to date, Google didn't have much of a choice, other than relying on iPhones, too, for its internal security.
Given how bad most Android OEMs are at keeping their devices up to date, Google didn't have much of a choice, other than relying on iPhones, too, for its internal security.
https://cloud.google.com/beyondcorp/