How to Protect Your Computer from Hackers :
When you’re online, you expose your vulnerability to malicious virus that have been growing in virulence and ferocity over the last few years. These program codes have gone beyond mere annoyances with the worst kinds disabling your PC, but they have become portals for remotely perpetuating more sinister activity that can clandestinely hack into sites, mount denial of services or steal confidential and personal data for fraudulent financial gain at your expense.
Are these virus serious enough to cause losses? Among home PC users, you may think having to reinstall your OS after a virus or malware has brought it down is not really expensive as you lose just a day or two to reinstall your programs and rebuilding files, consider that in a business, you could actually lose millions. Just ask ChoicePoint when it took a $6 million charge in 2005 after cyber criminals hacked into their systems and stole sensitive data from thousands of customers. Or the credit card processor CardSystems Solutions which may yet go out of business from major security breach at the company's Tucson, Arizona, operations center. In a recent consumer survey among security breach victims, people don't take lightly the loss of their data. More than 60% of respondents indicated their plans to terminate business relationships with a company that lost the data they entrusted to them.
In 2004, rootkits were a relatively obscure form of Trojans meant to infect Unix computers. But by 2005, rootkits have become a mainstream security threat after Sony BMG Music Entertainment shipped a few million CDs that contained a rootkit among its copy protection scheme. Within a few months, Sony recalled the CDs, but it was too late, According to security experts, rootkits attacking Windows PC were here to stay.
Most of the viruses on the computer were hidden in files that had been downloaded off the Internet: songs, videos, and movies. I was amazingly surprised that the computer lasted for 2 years with that many viruses! So I gave my dear cousin a serious lesson in how to protect her computer from the dangers of the Internet and I will go through them here for anyone else who might be interested!
1. Install Anti-Virus Software - This should not even have to be listed, if you don’t have anti-virus software installed, you’re asking for trouble! And if your reason for not installing anti-virus software is because it’s too expensive, then that can reason can be shot down because there are several free anti-virus programs out there that are considered better than commercial software packages. Here are two of the most popular ones:
AVG Anti-Virus – Very good and completely free.
Avast Anti-Virus – Almost on par with AVG.
Kaspersky Anti-Virus – Not free, but one of the best detection rates.
2. Update All Software - Installing an anti-virus program by itself is not enough. There are hundreds of new threats that are found daily and the anti-virus programs release updates regularly to combat the new threats. Make sure you anti-virus program is set to update automatically so that you don’t have to rely on your memory to do it. Also, this goes for all the software on your computer. The most important software to keep up to date is your Windows operating system. It is essential to have Automatic Updates turned on and set to download and install updates automatically.
3. Install only Trusted Software - If you’re not sure what a piece of software does from it’s name, then don’t install it. Also, don’t install anything you didn’t intend to install in the first place. Sometimes programs will ask you to install other programs during the install of the first application. Be careful of that because it’s usually spyware. Install software from big names sites only, such as Microsoft or Adobe.
4. Avoid P2P File Sharing Software – If used with great caution, P2P software is quite useful for movies, songs and software, but if you’re not very technically savvy, you might end up downloading a song that has a keystroke logger attached to it that will send anything you type to some other computer over the Internet. It’s almost impossible to tell that this is occurring unless your anti-virus or anti-spyware programs pick it up in their scans.
5. Delete Unknown Emails – If you receive emails from random people’s names, do not bother to open the email, just delete it. If you have any doubts after reading the name and the subject, it’s probably not someone you know. Never download or open attachments unless you are sure it’s from someone you know. Give the person a call quickly and ask them if you’re not sure. Most large companies that you create online accounts with will not send you attachments unless you specifically ask for them through their web site. Also, be wary of any emails from sites pretending to be banks, auction sites, etc asking for you to verify bank account info or address info. No bank ever does that.
6. Do not click on Ads - Avoid clicking on ads if you can. Especially those ads where something is flying around and if you shoot the duck, you win some prize! Ads have become more sophisticated in that they try to make the ad interactive so that you’ll be tempted to play it like a game.
7. Run Virus Scans Regularly – If you’re not in the mood to scan every day, at least run a scan once a week. Actually, setup a schedule for your computer in your anti-virus software to run a scan late at night or whenever you don’t use your computer and that way you won’t be bothered with a slow computer.
8. Be careful what you attach to your computer – This is a more common way to transfer viruses than you might think. Everyone now has a USB flash stick that they carry around on their key chains, ready to snap into any computer. But who knows what your viruses are on your friends computers and what accidentally got transferred to their USB stick. A lot of virus programs will auto launch right when the USB stick is put into the computer, so you don’t even have to open or download any of the files to be infected.
9. Avoid Shady Web Sites – If you need to look at porn, then make sure you do it in a virtual environment. You are DEFINITELY going to get some virus or spyware if you browse porn sites on your computer. Virtualization basically allows you to run programs like Internet Explorer in a virtual environment that does not effect your current operating system. If you want to find out more, search for “Virtual PC” or “VM Ware” in Google. Otherwise, simply avoid going to shady web sites!
10. Turn On or Install a Firewall - If you’re running Windows XP, make sure Windows Firewall is turned on. A firewall prevents hackers from gaining access to your computer by limiting the number of ports that are open to the public. Also, when buying a wireless router, make sure it has a built in firewall. Having a software and hardware firewall is better than just having one or the other.
11. Secure Your Wireless Network – Most wireless routers are set to no security when you install them. Be sure to log into the router and at least set the basic security that requires a password. There are stronger encryption options, but if you don’t understand those, then simply set a password on the router, otherwise anyone can connect to your home network and access everything.
12. Use a Complex Password for Login – This means that you should already have a password to login to your computer. Not having a password at all is not a good idea. Create a password for all user accounts and make sure it’s complex. Complex means it should have numbers, upper case characters, lower case characters, and symbols. This makes it way more difficult for a hacker to get into your computer.
