What Is a Computer Virus? A computer virus is a program. Like other programs, it’s defined by what it does, and the big thing a virus does is replicate itself. The virus exists as a collection ...

What Is a Computer Virus? A computer virus is a program. Like other programs, it’s defined by what it does, and the big thing a virus does is replicate itself.

Use this guide to the most common computer virus symptoms to keep your PC healthy and malware-free.

Nature Reviews Microbiology - What makes a virus a virus?A definition of viruses that is based on their disintegration and reconstitution requires knowledge of the reproductive cycle of the ...

What is a virus, how do they affect our bodies and how can we fight them?

They're invisible and make us sick, but how? Why is it so hard for scientists to stop a new virus? Learn why fighting a pandemic is so challenging.

We live in a new era of blended threats, worm viruses and a host of new breeds of malicious mobile code that are more dangerous than ever.

The current biggest virus record holder is the Pandoravirus, found in a pond in Melbourne. Its genome approaches the complexity of a small parasite.