Internet security is a fairly broad term, covering quite a few different areas. In reality, each of these areas needs a particular type of software to keep you protected. Some internet security suites – like Norton Internet Security for example – include many or all of these.
A firewall blocks your computer from being visible on the internet and both keeps hackers out and keeps your information from being sent out without your permission.
Firewalls can be either software running on your computer or a hardware device that connects between your computer and your internet connection.
Viruses are one of the biggest problems related to internet security. They can come in many forms, and there are new ones all the time so it’s important that you have an antivirus program installed AND that you keep it up to date on a regular basis.
Spyware is software that tracks what you do on the internet and sends that information back to someone who can use it to feed you ads or other unwanted junk.
Anti-spyware programs are much like antiviruses – they need to be kept up to date in order to catch the latest types of spyware.
Many email programs include spam filtering these days, but they are not always the best at getting rid of the junk.
Additional anti-spam programs will filter the email as it comes in and they’re generally much better at catching the garbage, without deleting things you wanted by mistake.
5. Common Sense
This one isn’t something you install on your computer but it’s probably the most important of the five.
If something sounds too good to be true (like some Nigerian businessman wanting to send you thousands of dollars in return for helping him out) chances are pretty good it is.
Use your common sense when dealing with email and websites – if you aren’t sure how legitimate something is, just delete it and move on.