Taking precautions like covering your camera with tape is a smart move to protect your privacy, even if the specific claims in the email were false. It's crucial to remember that scammers often use fear and embarrassment to manipulate their targets. They rely on people feeling ashamed or vulnerable to coerce them into paying.
You made a wise decision by not giving in to their demands, especially since you recognized that their threats were unfounded. It's essential to be cautious and skeptical when receiving such emails, and it's great that you were able to see through their lies.
If you ever encounter similar situations or have concerns about online security, a website like digitalinvestigation.com can provide professional assistance. They specialize in digital investigations and can help you understand the legitimacy of threats and provide guidance on how to protect yourself.