Answer:
Confidentiality is very important because even if you weren't the one the blame you can still be sued. My first suggestion to you is to invest in an internet security suite. I recommend AVG Internet Security. You download it search for and download it at download.com. Most data is stolen either because malware sends information about the user to sketchy peope or the user is tricked into downloadin rogue software and infecting their computer. However an internet security suite will prevent this. The next precaution you can take is to download encrytion software. Lets say your computer is stolen or compromised if important files are encrypted it will give the thief a very difficult time accessing the files. The next and finale precaution is to only store confidential information if it is absolutely necessary. The less information that is stored the less of a chance someone will gain access to it.