Posts Tagged ‘Internet Service Provider’

The Top 15 Ways to Protect Your Computer System

December 14th, 2009

Most new computer users use the computer for a specific purpose. I know of some people who use it only for e-mail. Others use it to view and print pictures that they took with their digital camera. Some people use it for doing work at home like word processing or spreadsheets. Teachers may use it to develop class plans that they do not have time to do at work.

Even though Identity Theft is in a lot of newspapers, letters from banks, TV, the Internet, most people do not protect their computer and their information. Maybe their attitude is “It can’t happen to me”. I am surprised that more than half of the home computer wireless networks in my neighborhood are not secure. Someone can have a laptop in their car and surf the internet for free. Some households can also borrow the neighbor’s Internet Service Provider (ISP) without having to pay for it themselves.

I have a little gadget that detects wireless networks. I am amazed that some small business and even schools in my area do not have a secure network. I taught an Identity Theft class in a school, and I went right onto their network without any login information. The school assumed that they were secure.

Another security concern is when someone has a laptop and they leave it unattended at the airport. When they look for it the laptop is gone. Some thieves just re-sell the laptop for quick cash. Other thieves see what type of information they can take off of the laptop. Even if the thief re-sells the laptop quickly, your personal information is still on the laptop. If the computer does not have a password on it, then anyone has immediate access to the information on the computer.

I had one customer put her laptop into her luggage and checked it in at the airline. When she arrived at the hotel and opened her case she saw that the laptop was gone. There was also a note inside that the airline inspected her luggage. Did this customer learn? No, she did it again. And to make matters worse, she was traveling with someone else. He saw that she checked her luggage with the laptop in it, and he followed suit. A big surprise here – both laptops were gone.

Home networks is another big security concern. When I see an unsecured home network I leave a flyer on their door and say that there network is not secure and for $25 I will secure it for them. I usually write the name of their network on the flyer so that they know. Four out of five people call me.

Here are some ways to help protect your computer system (they are not in any order of importance):

1. Put a password to access your computer. I would even put a power-on password which means that once you turn on the computer you need to put in a password before the computer starts up. This should not be the same password you use to login to your computer. This advice is needed for laptop users.

2. Buy a surge protector and plug all of your computer items into it. Buy one that works and has a guarantee, and not just a power strip.

3. During a thunder storm, or any storm that looks like it has an effect on power, turn the computers off. I would even unplug the surge protector from the wall. If the home is hit by lightning the house wiring can burn out computer components.

4. If you need the computer constantly on, invest in an Uninterruptable Power Supply (UPS). The computer can stay on up to three hours without electricity. If you have a laptop plugged into a UPS, then you have the three hours and the laptop battery time.

5. If you are connected to the Internet, wired or wireless, you must have a router with a built-in hardware firewall. You should also have a software firewall as well. Most times software scans the internet looking for vulnerable computers. It is not unlikely if you have cable, DSL, Satellite, or FIOS that your computer is not scanned 15 or more times a day. A hardware and software firewall prevents this from happening.

6. Get anti-virus software installed on your computer. If you do not want to pay for it, get a free one.

7. Install spyware removal software on your computer and run it regularly. You can just get free ones if you do not want to invest in a commercial product, although the commercial ones are better.

8. Do not have Windows remember your passwords. On my blog I recommend a product for remembering passwords.

9. In Internet Explorer and Firefox have your security settings to at least medium.

10. When traveling keep your laptop in sight. Do not check it in with your luggage.

11. When you go into a wireless café or hotel that has internet access you should have an internet security product. McAfee and Norton are pretty good. There are also a couple of free ones.

One other thing to keep in mind with a laptop is that many of them can transfer through infrared to other laptops or PDAs / cell phones. It only takes a couple of seconds to transfer your information. Credit card numbers for example are 16 characters. There is software out there that can look for a string of 16 characters, or your social security number.

12. Do not open attachments from someone you do not know.

13. If an email does not look right, do not open it. Ebay, your bank, paypal, etc. will not ask you to click on a link to update your account information. They say, log into your account and verify your information. These fake emails are phishing for your information. When you click on them it does look like the right sight, but as soon as you sign into this phishing site they have your login name and password. You should then immediately go to your site by typing in the address and change your login password. If you can change your login name do that as well.

14. Do not give your passwords out to others.

15. If someone requests to remotely access your computer make sure their software is permission based. This means that you will get a pop up window or email and you give the person permission to look at your screen. That way if you do see something wrong like looking at your emails or documents you can stop the connection between the two computers.

I hope you found this article informative. In the resource box below click on the blog link where you will find more useful hints and recommended software and hardware.

John Gontowicz

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By: John Gontowicz

Network Security 101

October 6th, 2009

As more people are logging onto the Internet everyday, Network Security becomes a larger issue. In the United States, identity theft and computer fraud are among the fastest rising crimes. It is important to protect your network and ensure the safety of all computers and users in that network.

What is a Network?

In order to fully understand network security, one must first understand what exactly a network is. A network is a group of computers that are connected. Computers can be connected in a variety of ways. Some of these ways include a USB port, phone line connection, Ethernet connection, or a wireless connection. The Internet is basically a network of networks. An Internet Service Provider (ISP) is also a network. When a computer connects to the internet, it joins the ISP’s network which is joined with a variety of other networks, which are joined with even more networks, and so on. These networks all encompass the Internet. The vast amount of computers on the Internet, and the number of ISPs and large networks makes network security a must.

Common Network Security Breeches

Hackers often try to hack into vulnerable networks. Hackers use a variety of different attacks to cripple a network. Whether you have a home network or a LAN, it is important to know how hackers will attack a network.

One common way for a hacker to wreak havoc is to achieve access to things that ordinary users shouldn’t have access to. In any network, administrators have the ability to make certain parts of the network “unauthorized access.” If a hacker is able to gain access to a protected area of the network, he or she can possibly affect all of the computers on the network. Some hackers attempt to break into certain networks and release viruses that affect all of the computers in the network. Some hackers can also view information that they are not supposed to see.

Destructive Attacks

There are two major categories for destructive attacks to a network. Data Diddling is the first attack. It usually is not immediately apparent that something is wrong with your computer when it has been subjected to a data fiddler. Data fiddlers will generally change numbers or files slightly, and the damage becomes apparent much later. Once a problem is discovered, it can be very difficult to trust any of your previous data because the culprit could have potentially fooled with many different documents.

The second type of data destruction is outright deletion. Some hackers will simply hack into a computer and delete essential files. This inevitably causes major problems for any business and can even lead to a computer being deemed useless. Hackers can rip operating systems apart and cause terrible problems to a network or a computer.

The Importance of Network Security

Knowing how destructive hackers can be shows you the importance of Network Security. Most networks have firewalls enabled that block hackers and viruses. Having anti-virus software on all computers in a network is a must. In a network, all of the computers are connected, so that if one computer gets a virus, all of the other computers can be adversely affected by this same virus. Any network administrator should have all of the essential files on back up disks. If a file is deleted by a hacker, but you have it on back up, then there is no issue. When files are lost forever, major problems ensue. Network security is an important thing for a business, or a home. Hackers try to make people’s lives difficult, but if you are ready for them, your network will be safe.

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By: mohan mittal