Why virus in computer is dangerous?

Why virus in computer is dangerous?

Some computer viruses are programmed to harm your computer by damaging programs, deleting files, or reformatting the hard drive. Others simply replicate themselves or flood a network with traffic, making it impossible to perform any internet activity.

What is the dangerous computer virus?

1. Mydoom – $38 billion. The worst computer virus outbreak in history, Mydoom caused estimated damage of $38 billion in 2004, but its inflation-adjusted cost is actually $52.2 billion. Also known as Novarg, this malware is technically a “worm,” spread by mass emailing.

What does virus do to your computer?

A virus can damage programs, delete files and reformat or erase your hard drive, which results in reduced performance or even crashing your system entirely. Hackers can also use viruses to access your personal information to steal or destroy your data.

Are computer viruses always harmful?

It’s true that most viruses are programmed to do damage. But viruses aren’t inherently bad — after all, they’re just pieces of code. An anti-virus virus that could find and then remove other harmful viruses. A file-compressing virus that could “infect” and then compress the files it attaches to.

Which is the harmful for the computer?

Harmful Software (Malware) Viruses: malware that spreads from computer disks, CD-ROMs, and other storage media. Worms: malware that spreads through network connections. Rootkits: tools used by hackers that are hidden on a computer and used to maintain remote access and control of the computer.

Who created iloveyou virus?


Common name ILOVEYOU
Type Computer worm
Point of origin Manila, Philippines
Author(s) Onel de Guzman
Operating system(s) affected Windows 9x, Windows NT 4.0, Windows 2000

Who created ILOVEYOU virus?

Can computer viruses be good?

It’s unethical, and illegal in many countries, regardless of any benefits. By its very nature, a virus spreads randomly from machine to machine, so there is no way of knowing where it may ultimately go. Even a “good” virus uses system resources such as disk space, memory and CPU time.

What is the most deadly virus?

Marburg virus. YouTube. The Marburg virus is considered the deadliest virus in the world, with a body count that will likely give any sane person the heeby-jeebies. Marburg is deadly because it takes its cues from its sister virus, ebola, in that the endgame is massive hemorrhaging and slow, agonizing, messy death.

Does your computer have a virus?

One easy step to check whether your computer has got virus is to open the task manager. Press together ctrl+alt+del. The task manager should show up. If not, your computer might be virus infected. But this is not the case always. There are some malwares that can show the task manager and still harm your computer.

What causes computer virus?

The following are the main causes of a Computer Virus. Flash drives and disks are the main cause of spreading viruses. Flash drives and disks are used to transfer data from one computer to other. A virus can also be copied from one computer to other when the user copies infected files using flash drives and disks.

What is the most popular computer virus?

There are different kinds of computer viruses: Probably the most common form is the macro-virus or script virus. Such viruses are programmed with the script function which is present in many text processing systems and spreadsheets; or with general “script” functionality of a program.