Unfortunately, some online companies will share or sell your information to third parties or inundate your inbox or mailbox with unwanted solicitations. A fully disclosing privacy policy should tell you exactly how your information is used and with whom they share your information.

A referenced academic look at what website defacement is, how and why it is carried out, and how to protect your website from it.

Here is a article on how to get computer security software for free to help with problems coming from the Internet.

This is a article on different hardware and software solutions for firewalls.