Can you tell if there is surveillance software on your computer?

To determine if there is surveillance software on your computer, you can check for unusual processes in the Task Manager (Windows) or Activity Monitor (Mac) that you don't recognize. Additionally, scanning your system with reputable antivirus or anti-malware software can help detect hidden surveillance programs. Look for unexpected network activity or unusual settings in your firewall and security software as further indicators. Lastly, reviewing installed programs and browser extensions can reveal unauthorized software.