From TechRadar:

We recently looked at various techniques you can use to hide data in Windows, from simple filename tricks to complete encryption of the OS. Now we're going to turn the tables and discover ways to uncover hidden activity.

There are plenty of reasons why someone might not want you to know that your security has been breached. The most obvious is infection with malware. If you believe others may be using your PC without your consent, the issues can become serious. What are they doing? Will people assume it was you?

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