| In information security , computer virus is a manmade | | | | can create inconceivable damages. |
| program or piece of code that is loaded onto your | | | | Some things what virus can do with computer: |
| computer without your knowledge and runs against | | | | * Slow down e-mail - generating huge e-mail traffic |
| your wishes. From behavior computer virus in a way is | | | | and slowing down servers; |
| a similar biological virus which pervasions by inserting | | | | * Steal confidential data - for example, recording user's |
| itself into living cells. Cell by cell and all organisms | | | | keystrokes; |
| (computer) is ridden virus cells. | | | | * Use your computer to attack websites; |
| Without computer viruses there are separated two | | | | * Let other user hijack your computer - allowing to |
| other types of malicious computer programs - viruses. | | | | connect to your computer and use it for their own |
| Trojan Horses | | | | purpose; |
| As already from this virus type name we can imagine, | | | | * Corrupt data - making changes in some documents; |
| Trojan horses are programs that pretend to be | | | | * Delete data - all or only some part data on your |
| legitimate software, but actually carry out hidden, | | | | HDD; |
| harmful functions. Trojans can't replicate themselves | | | | * Play pranks; |
| that mean, they can't expand so fast as other virus | | | | * Damage credibility - forwarding itself from your |
| types. But often they work together with viruses. | | | | computer to your friends or even business partners; |
| Worms | | | | * Cause embarrassment - for example, replacing one |
| Worms are similar to viruses but do not need a carrier | | | | word in all documents with other. |
| program or document. Worms simply create exact | | | | Every year computer viruses activity brings to |
| copies of themselves and use communications | | | | company several million dollars damages. Year for |
| between computers, for example e-mail, to | | | | year this number of damage increase! |
| spread.There are different types of computer viruses | | | | Because it is so important that every people get |
| with different influence. Some viruses are fairly | | | | information security awareness training! |
| harmless or only annoying, but there are viruses that | | | | |