Preventing computer viruses

Keeping your computer safe is important. There are countless viruses, infections and other malware lurking on the internet. Viruses are so numerous, in fact, that you can’t afford not to. With the world of online banking and shopping, it is too risky to leave your personal information to chance. The best defence in this case is prevention.


Firewalls are the first line of defence for a computer. A firewall will monitor network traffic and data that is sent to and from the computer. Whilst a personal firewall will not monitor an entire network, it will prevent infections from reaching your computer through any network it is attached to.

It is important to install a reliable firewall as soon as possible. If an infectious piece of spyware or malware gets on your computer, it can potentially disturb any existing firewalls that didn’t filter it, as well as any additional firewalls that are installed later. Having a decent firewall to prevent this in the first place is the easiest and most efficient way to prevent this from happening.

The Viral Aftermath

Furthermore, many viruses, in particular worms and Trojan programmes, can ‘grow’ once inside a computer. Whilst worms can replicate throughout your system, a Trojan works by allowing further viruses in. Viruses such as worms often deploy a ‘payload’ once they are successful in accessing your computer. These payloads can be anything from a programme that damages your computer to another virus in itself.

Further threats such as spyware threaten your personal data, and adware can bombard you with adverts and website pages you don’t want. When personal information is involved in this way, simply removing a virus after it’s done the damage can often be too late; further repercussions can take place and such information is hard to recover. Often, you may find you have to change your details to stop someone using them. This includes passwords and bank codes, which are of critical importance.

Essentially, the majority of viruses are designed to spread and cause greater damage once the infection has taken place. To this end, a firewall has the easier task of stopping them before this happens. Whilst many computers come with a basic firewall system installed, a dedicated firewall is not hard to find. Kaspersky, for instance, offer a wide range of programmes, many utilising a firewall feature for this kind of virus prevention.

Anti-Virus support

Of course, if something does get through then anti-virus support is a must. Support is available for whatever operating system you have. With the two most common, there is fast, reliable anti-virus for Windows, as well as anti-virus for Mac, by Kaspersky. Although not freeware, this software is reliable and accurately updated to prevent viral infections. Combined with a dedicated firewall, your computer should have a much greater virus-free lifespan.

Kaspersky also offer a free trial. Their free anti-virus downloads offer you the chance to try the software for free, and see how efficient it is in supporting your system.