It's not just about webcams or recording your microphone. That's just the tip of the iceberg.

I use a desktop nowadays. So no input whatsoever, unless I explicitly buy it and plug it.

Your keyboard is an input device. That is what I am talking about. I am saying that with a Remote Access Trojan, they can do much more than access your mic or webcam.

"What is a RAT (remote access Trojan)?

A remote access Trojan (RAT) is a malware program that includes a back door for administrative control over the target computer. RATs are usually downloaded invisibly with a user-requested program -- such as a game -- or sent as an email attachment. Once the host system is compromised, the intruder may use it to distribute RATs to other vulnerable computers and establish a botnet.

Because a RAT enables administrative control, it makes it possible for the intruder to do just about anything on the targeted computer, including:

- Deleting, downloading or altering files and file systems.

- Monitoring user behavior through keyloggers or other spyware.

- Accessing confidential information, such as credit card and social security numbers.

- Taking screenshots.

- Distributing viruses and other malware.

- Formatting drives."

Source: https://searchsecurity.techtarget.com/definition/RAT-remote-...

As long as I'm online, I'm sure any well-informed techie could, at any point, show me how my computer usage is insecure. At some point, I must stop securing stuff and start working. I'm just a regular user running Debian with firewall enabled on a desktop machine. That's enough for me. I won't use the internet via email like Richard Stallman.