How Computer Viruses Work And How To Protect Your Computer

Many people are afraid of tinkering with their computers because of the fear that they might inadvertently introduce a computer virus into the computer system.

Computer viruses have become the technological bogeyman that scares computer users all over the world. We have all heard of how dangerous computer viruses are and how it can damage your data. Of course, aided by the bloated images Hollywood movies paint with regards to computer viruses, a big majority now have this insane (but mostly unfounded) fears about it.

It is true that computer viruses are dangerous. Anyone who has lost vital information in their computers because of a computer virus will know how big a damage it can cause. But computer viruses are not these insidiously little pieces of code that could wreak havoc on the world. If you know what to do when you get a virus in your computer then you can definitely limit, if not totally stop, the damage it can cause.

But what is a computer virus? Well, it is a software with a small imprint that would usually attach itself on to a legitimate program or software. Every time this program is executed the virus is also executed and it tries to reproduce itself by attaching to other programs or it immediately starts affecting the computer. A computer virus and email virus basically have the same modus operandi, the difference though is that an email virus would attach itself to an email message or automatically send itself using the addresses in the address book in order to infect the people who receive the email.

A computer virus is usually embedded in a larger program, often a legitimate piece of software. The virus will be run when the legitimate software is executed. The computer virus would load itself into the memory of the computer and then it will seek out any programs where it can likely attach itself. When a likely program is found then the virus would modify the file in order to add the virus’ code to the program. The virus would usually run before the actual legitimate program runs. In fact, the virus would usually perform the infection first before it commands the legitimate program to run. This process is so fast that no one would even notice that a virus was executed. With two programs now infected (the original program and the first infected program), the same process would be repeated whenever either program is launched worsening the level of infection.

After the infection phase, or even within the middle of the process of infection, the virus would usually start its attack on the system. The level of attack can range from silly actions like flashing messages on the screen to actually erasing sensitive data.

Fortunately, there are steps that you can do in order to protect your computer from viruses. Among the steps that you can take are:

* The simplest way to avoid a virus is to install a legitimate and effective antivirus program in your computer. The antivirus program is designed to look out for any kind of activity that could be seen as similar to a virus attack or infestation and it automatically stops it.

* You can opt to use a more secure operating system in your computer. For example, Unix is a secure operating system because the security features built into it prevents a virus from actually doing what it is programmed to do.

* Enable Macro Virus Protection in all of the Microsoft applications resident in your computer. Additionally, you should avoid running macros in a document unless you have a good idea of what these macros are going to do.

* Avoid using programs that you have downloaded on the internet especially when they come from dubious sources.

* Never open an email attachment that contains an executable file – these are files with the EXE, COM and VBS extensions.

Read More......

Computer Security: The Essential Components For A Safe Computer

Today, computers are almost as common as the telephone in the home. Computers themselves do not pose a threat to security. When connected to networks and chaos that is the World Wide Web, computers have become tools that identity thieves and hackers use to extrapolate this chaos. In order to establish computer security, software companies have set up mechanisms to prevent risks and the chances of viruses, spyware, spam and pop-ups.

The first of these is a new anti-virus software. There are two large companies that offer this program: McAfee and Norton. These programs work to scan the files on your computer and view them for the attributes that are in or virus are often linked to viruses. These traits or attributes are often called virus definitions and need to be downloaded on a fairly regular basis. In addition to the files on your computer files on CDs, floppy disks and e-mails can and should be filed. There is no doubt about it: anti-virus software is essential to computer security.

Next on the list is spyware scanning software. Spyware occurs when certain sites run programs in the back ground of your computer while glean some information. Information can be as mild as monitoring such websites you look at the acquisition of real passwords. Whatever type of spyware, it can slow your computer to a crawl and should be removed from your computer. Two options are popular software Spy Sweeper and Ad ware.

Lastly, but certainly not least are pop-up blockers and extent of filters. Not only pop-ups and spam annoying, but they often contain spyware scanning software described above. In addition, they can slow down your computer incredibly low. And when you are angry at your computer, your computer is not safe!

In addition to these software components, there are still a few tricks that you can use to keep your computer and your information secure. Password sure what you can and when you create passwords, do not make them easy. Do not use your name, your birthday or your social security number. And, if you are on a wireless network unsecured, do not check your bank statements. These networks allow several people at once. Remember, the pirates are intelligent. You must be intelligent!

Read More......

Two Dads: One Computer-Maniac, The Other Computer-Phobic

I have two Dads. That sounds strange doesn’t it? One is my genetic father, and the other is my geneticist father. The genetic Dad I’ve only ever lived with for one year when I was an infant, while the geneticist Dad is what you would call a step-father, but I’ve lived in close proximity with him for more than 20 years. I feel close to them both. I connect differently with each of them but on a pretty much equal level. The reason I’m sharing my personal information with you is because I’ve just had a realisation about my fathers in relation to the area that I work in: computers and the Internet. It’s really quite interesting.

One father is a computer maniac. Whenever a new technology, software, gadget, or website emerges he is one of the first to grab it up and evaluate it. My other father has an old piece-of-crap box that looks something like a computer, with a tediously slow dial-up connection to the World Wide Web. Compared to the wireless, broadband Mac personal computer and mobile-connected Mac laptop of the enthusiast, they couldn’t be from further parts of the galaxy.

Then there’s me. I could be construed as being a walking paradox, an enigma, or just plainly twisted when it comes to my relationship with the computer and Internet sphere of life. Nature/nurture, genetic/environmental…For whatever strange reason, I have turned out to be a combination of the two papas. I work as a creative writer for an Internet web-hosting company. I love the ideas and valuable functions and tools that the Internet has brought to humanity (or was it humanity that brought it to the Internet?). However, I have issues and challenges when it comes to using these awe-inspiring machines.

Currently I am away from home in a different city visiting my girlfriend. At home (I am currently living with my parents-Mother and geneticist, as I’m going to live overseas soon) all I have to do to get on the Internet is open up my laptop and I’m on-line. If I’m at work, I go to my PC and all of my settings are stored and ready for me to use. While in a new place, things haven’t been running as smoothly as I would’ve liked. The answers are probably simple and easy to do, but this is one of the kinds of challenges that cause me to stumble. Although I am deeply interested and have a true faith in this new technology, I am a real novice when it comes to getting things done on someone else’s computer.

I brought my laptop with me. My girlfriend only has a dial-up connection which she uses with her laptop. I could use hers’ but she’s Chinese so a lot of what comes up on the screen is illegible to me. I don’t know how to change her language configuration. I’m used to doing it quite easily on my Mac, but her computer is a PC and I’m not as practiced in this other format. That’s one of my problems. I only have so much patience when it comes to working these technological issues out; it could be a trait passed on by my ice-age father (No judgement is being laid here. He just doesn’t feel that he can work new technologies out. He’s had a digital telephone answering machine for two years which he still hasn’t set up. He feels bad about it but his manual one does the job, so he sticks with it.). I’m also a little afraid to hook my laptop up to her dial-up line as I know from experience that I’ll have to change some settings of which I am not confident about doing.

So the next answer was to go to her university where she said people use their laptops wirelessly in the library. That sounded cool so I went in and tried it out. I even tried changing the settings to get it to work (It took courage.) but I couldn’t get it to work. I was weary about asking for help because I wasn’t really a student at that particular learning establishment. Instead, I’ve been using the library’s computers. This is OK, but since I can’t walk away with the files I create (I borrowed my girlfriend’s thumb-drive but an experience from the past of not being able to transfer information from PC to Mac deters me from using it-again, an irrational fear. I know it, and I will give it a try this week. I’ve resorted to saving my files in my email account as attachments. It’s not conventional, but it works.

Another issue I’ve had is getting onto my messenger service. The university computers don’t have it on their desktop, and when I tried to download an on-line version I was told that I didn’t have the authority to do so. I went to an Internet café, and I could do work there (I’m working on the road) but I feel kind of silly paying to get paid. It was cool there though as they had messenger with voice and video and I was able to have a conversation with my brother who is travelling around India. He could see my sister and me, but we couldn’t see him as he said the Indian computer devices (webcams, headsets) in that town were looking a little bit crappy in design and also looked worse for wear. It was heaps of fun making funny faces knowing that he would be seeing us. I think he’s getting lonely as he’s only 19 years old and has been away from home for over 7 months.

As you can see I’ve inherited beliefs about computer from both of my Dads. I find things more difficult than most, I believe, but I’m not going to give up doing my best to get the things done that I feel are necessary. Over time I hope to get over these little obstacles and hurdles and become proficient in all of the cool aspects of this new realm of human endeavour. I also have faith that the technicians and engineers are probably working hard to make things simple for the rest of us.

Whatever happens, I’m going to stick with it, and when I go to see my genetic father next I’m going to do my best to inspire him to buy a new computer with a Broadband connection. Then all I have to do is show him a few of the amazing things that this human created Internet tool can do. One of the aspects of the Web that affects me most profoundly is the simple fact that if you think of anything at all in the known Universe, you can then look it up on your search engine like Google and in the time it takes to blink your eye, immediately start to learn. It sure beats catching the train to the library, looking up a book in the card catalogue, searching for it, then finding out that someone else has borrowed it and is late bringing it back.

Read More......