One of my colleagues asked me to install TeamViewer so he can help me at work. Should I trust TeamViewer? I mean, will they be able to spy on me? Do I have full control of what they see of my computer and when?
We cannot know what Teamviewer does with your data but there are some security risks you should watch out for:
- Don't share your private details on a public screen. Some people use Teamviewer to get to screens that are placed far away or high up off the ground (advertising boards and etc) which are available to the public to see. If the Teamviewer details are displayed any user can login to that PC.
- After using it renew the private code or uninstall it if not needed anymore so no one can login with the same code again.
If you really do not trust it you can try other programs such as standard RDP.
You can also read a little more about the Teamviewer connection in this question.