What is a super encryption file & does it take screen shots?
Question:
Answer:
There are a lot of ways to potentially observe someone's computer usage. First a key stroke logger (hardware or software) can be used to get your passwords. He could also be using something called a "rootkit" to hide the software that he is using to observe you. There is a program called Rootkit Revealer that will check your system to detect any root-kits that are installed. Once you know that your system has been compromised like this. The only safe way to proceede is to format and reinstall. You should back up your data before this, but be VERY careful about accessing it, because it could be a vector allowing the root kit back onto your system.
Windows XP (Mac OS and Linux/Unix do too), allows you to encrypt your home directory. This will prevent him from viewing your files when he is logged into his accout.
If you are sharing a network, but not a single machine, he could also use network traffic sniffing software like Ethereal or Cain and Able to view the traffic being transmitted to an from your computer. Encrypted connections like SSH tunnels, or HTTPS will not expose their content, but he would be able to see the source an destination addresses.
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