2

I have been doing business with someone on Fiverr. The person's help was really good, but I have concerns that they could potentially hack through TeamViewer. I never leave sight of my PC and I follow every click that is made with the mouse.

However, is there a way that someone can hack without my knowledge? Is there a way for them to control my mouse on their end and make it appear as if my mouse pointer isn't moving on my end?

I make sure to completely log off and lock my PC after each session, however I am not sure how to check if my PC has been hacked without my knowledge.

6

TeamViewer has three built-in functionalities to let user access to remote computer. They are Remote Control, File Transfer and VPN (if driver is available). None of these functions have hidden mode and again none of them lets remote user view or manage your computer without you noticing it. I see three possible attacks here:

  1. If required drivers are all installed (remote user can install that too) he can disable your screen and lock your keyboard to do dirty things without you seeing it but not without noticing it. All you have to do is plug out your network cable or power cord, that will stop him.
  2. Remote user can connect your computer with File Transfer function. However when the connection is established, you will see a pop-up window that lets you see what remote user viewing, copying or deleting. If you are not careful he can install malware or change your teamviewer files with evil ones.
  3. If TeamViewer VPN driver is installed and active, remote user can get in to your home network via using your computer as a bridge. If your network devices have default or weak passwords, attacker can change your DNS addresses (or worse, forward all traffic to its own network) to get and alter your DNS requests. He can use this technique to redirect you a phishing website and steal your information.

All of these techniques are useless if you are careful enough. First and second technique cannot be accomplished without you noticing it. If you haven't installed VPN driver for TeamViewer (that can disabled from your network and sharing center) there is nothing to worry about with the third one too.

If you are careful enough, no one can hack you with TeamViewer.

  • 1
    I wouldn't be afraid to generalize: "If you are careful enough, no one can hack you." – Tomáš Zato Apr 21 '16 at 14:42

protected by Community Oct 3 '15 at 23:05

Thank you for your interest in this question. Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site (the association bonus does not count).

Would you like to answer one of these unanswered questions instead?

Not the answer you're looking for? Browse other questions tagged or ask your own question.