[DanBC]

Have you done a risk analysis?

Some things for you to ask yourself: Do you work for a government agency? Is it possible for secret documents to be on your machine? Do you work for a high profile company? Is it possible for trade secrets to be on the machine?

What's the worst that could happen if the data is compromised? Will you die? Will you go to jail? Will your company lose millions of dollars?

> What are some good (trustworthy) tools I can scan my computer with.

There are none. Once you think your machine has been compromised the only safe course of action is to wipe and re-install, and then very carefully restore data from back-up.

Check for hardware tampering too - hardware keyboard grabbers are cheap and easy to fit.

Don't forget that burglars have different styles - they don't just rob everything. Some burglars will just steal jewellery and leave everything else; others will grab everything technical and leave everything else. And the burglars might have been disturbed in the process of robbing the house.

[zeeed]

In addition to checking added parts, do check your USB peripherals carefully (keyboard, mouse, game controller) if they have been exchanged/tampered with.