(Allegedly) TIAA actively monitors written communications (email, messaging) and social media accounts. For the NCC they monitor all calls through audio recording and screen capture, as well as call telemetry. Passively, TIAA collects all sorts of things like location, computer and network telemetry, etc..
What else is the company monitoring?
Allegedly there is internal testing of Teramind, “Big Brother” software that can secretly monitor everything employees do, from keystroke logging to screen capture. It can also do things like activate the webcam and take desktop control without the user ever knowing.