If your employer requires you to have a phone for official use, keep it separate from your personal phone; different device, different number, different networks if possible (ie: only let it join your home’s guest network). Don’t do personal things on your work devices, including logging into personal services, social networks or communication tools.

I worked for Akamai for 7 years.

This is why, if your CDN infra is core to the operation of your business, you make your systems accommodate multi-CDN integration. Cutting one CDN off shouldn’t be significantly difficult, and it comes in handy during contract negotiations. All the major players work this way.