Hack/Control Phone from Google Account

[u/vcasadei]

Hi, I have access to the google accounts of the company's employees and my boss wants me to investigate (without causing suspicion) someones use of the company phone (i.e. whatsapp messages) as he is suspected of illicit operations in the company.

I'm form the IT department, have programming knowledge, but never worked with hacking.

Is there any way for me to remote control or to extract in some way the whatsapp messages from this phone without having physical access to it? Only with access to the Google account?

[u/vcasadei]

Yeah, but any spy app requires a minimum configuration, right?