keeping private info secured

Hello! What program/software do you use to keep your private information that stored in web applications secured? My friend told me about web application security scanner, She said that it is a program which communicates with web applications through the web front-end in order to identify potential security vulnerabilities in web applications and architectural weaknesses. Any thoughts?
Sorry but I don't know much about the web security scanner. I 'm only aware about running anti spyware and virus-detection programs on servers in protecting my personal information online to help reduce your risk.
It's okay. Still thanks for posting.
I managed to get ahold of my friend who knows about it and was told to contact this company and ask about their web security scanner. I haven't contacted them yet because I've been busy but I will tomorrow.