Hello!
I watched an interesting movie on NatGeo about credit card stoling and I thought I write some lines about protecting yourself from computerized crimes.
First of all, protect your wireless network if you have. We cannot speak only about internet connection stolen (and if you have a fast internet connection you cannot recognize if someone steals your net) but the crackeris also in your internal private network and can do an nmap scan to indentify live host and can steal, modify, destroy your data with a help of an exploit. Also can see with your webcamera, do a screenshot, listen to your microphone, execute commands and programs, and last but not least can set up a backdoor for future hacking. Set up firewalls and install a good antivirus to avoid these things. It's 2 minutes to scan a network and hack a Windows XP machine without any protection.
Don't use your Windows computer in network without protection. I highlighted Windows, because Linux, BSD, MacOSX systems don't have much virus. But on these systems you have to set up a firewall. There are so good firewalls included in these systems, but on Windows I suggest a 3rd party firewall.
Keep your system up to date! It's very important, because with a system update the creators can close backdoors and reduce vulnerabilities. The cracker could enter your system before the system update, but after the vulnerability is not present, so the cracker cannot crack.
Try to be invisible! If you have a good router, or you are using DD-WRT you can set that your router don't reply to ICMP echo (ping) requests. So you are invisible to a simple ping scan.
Be paranoid! I give an example: The MSN virus. You received a message from your MSN partner infected by an MSN virus. He/she gave a link to watch or download, and your are infected, too. Maybe with this thing you are a part of a botnet. Don't open a message came from unknown source. Delete it! Maybe it can contain a virus.
Don't follow links saying: There is a good job in XY or buy cheap viagra. These are hoax advertisements.
Don't get your passwords remembered at public places for ex. internet café, or McDonalds. Start a private browsing.
I said it before, but use strong passwords. A good password is long, contains uppercase, lowercase, numbers and special characters. The dictionary words or well-known combinations are wrong ( for ex. asdasd asdf, cat, dog, etcetera).
When I got new ideas, I will extend my article :)
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