What Is Computer Virus Explain How Do You Protect Computer From Viruses?

How are viruses caused on computers?

Viruses can enter your computer in any number of ways, such as via an email attachment, during file downloads from the Internet or even upon a visit to a contaminated Web site..

What is the best virus?

The best antivirus 2020 in full:Bitdefender Antivirus. Loaded with features, giving you rock-solid protection – 2020’s best antivirus. … Norton AntiVirus. Protection that won’t slow you down. … Kaspersky Anti-Virus. … Trend Micro Antivirus. … Avira antivirus. … Webroot SecureAnywhere AntiVirus. … Avast antivirus. … Sophos Home.More items…•

What a computer virus Cannot do?

A computer virus, much like a flu virus, is designed to spread from host to host and has the ability to replicate itself. Similarly, in the same way that viruses cannot reproduce without a host cell, computer viruses cannot reproduce and spread without programming such as a file or document.

What was the first computer virus?

BrainBrain, the first PC virus, began infecting 5.2″ floppy disks in 1986. As Securelist reports, it was the work of two brothers, Basit and Amjad Farooq Alvi, who ran a computer store in Pakistan.

What is the most dangerous computer virus right now?

Here’s a quick list of some of the most dangerous viruses of 2018 (so far).ILOVEYOU. The ILOVEYOU virus terrorized users globally. … Kovter. Kovter is a Trojan that’s gaining notoriety in 2018. … Emotet. Emotet was a malware that focused on banking operations. … WannaCry. This ransomware virus started in 2017. … Mirai.

How can you protect against computer virus?

Here are 10 tips on how to prevent malware from infecting your computer, keeping your hardware safe.Install Anti-Virus/Malware Software. … Keep Your Anti-Virus Software Up to Date. … Run Regularly Scheduled Scans with Your Anti-Virus Software. … Keep Your Operating System Current. … Secure Your Network. … Think Before You Click.More items…•

How do computer viruses spread and in what ways do they affect computers?

Computer viruses usually spread in one of three ways: from removable media; from downloads off the Internet; and from e-mail attachments. Although the Internet gets a bad rap as a source of viruses, you’re no more likely to contract a virus from the Web than you are from packaged software.

What is Computer Virus explain?

In more technical terms, a computer virus is a type of malicious code or program written to alter the way a computer operates and is designed to spread from one computer to another. A virus operates by inserting or attaching itself to a legitimate program or document that supports macros in order to execute its code.

How do viruses enter the body?

Bacterial and viral infections have many things in common. Both types of infections are caused by microbes — bacteria and viruses, respectively — and spread by things such as: Coughing and sneezing. Contact with infected people, especially through kissing and sex.

How many types of computer viruses are there?

7 Types7 Types of Computer Viruses to Watch Out For and What They Do. The types of computer virus, or malware, are many.

Can virus damage motherboard?

9 Answers. In older times, virus could be damaging to the hardware in the following way: … This does not permanently kill the hardware, but resurrecting it can be hard; e.g. some motherboards can be reflashed after such a junk flashing only by reading the BIOS from… a floppy disk.

How do hackers use viruses?

A hacker might install a virus by infiltrating a system, but it’s much more common for hackers to create simple viruses and send them out to potential victims via email, instant messages, Web sites with downloadable content or peer-to-peer networks.

What is the most dangerous computer virus and why?

ILOVEYOU It is considered one of the most virulent computer viruses ever created. It was managed to wreak havoc on computer systems all over the world with around $10 billion worth of damages. 10% of the world’s computers were believed to have been infected.

What is the most famous computer virus?

The 8 Most Famous Computer Viruses of All TimeCryptoLocker. When it comes to malware, ransomware is the new kid on the block. … ILOVEYOU. While ILOVEYOU sounds like a cheerful bon mot you might find printed on the inside of a Valentine’s Day card, it’s actually far, far more sinister than that. … MyDoom. … Storm Worm. … Anna Kournikova. … Slammer. … Stuxnet.

How do you know if there’s a virus in your computer?

Here are the top ten signs your PC has a virus.Unexpected pop-up windows. Unexpected onscreen ads are a typical sign of a virus infection. … Slow start up and slow performance. … Suspicious hard drive activity. … Lack of storage space. … Missing files. … Crashes and error messages. … High network activity. … Email is hijacked.More items…•

What is the best computer virus cleaner?

Malwarebytes Anti-Malware. The most effective free malware remover, with deep scans and daily updates. … Avast anti-virus. Anti-malware protection and removal. … Kaspersky Anti-Virus. Solid malware protection for beginners and experts alike. … F-Secure SAFE. Easy malware protection. … Trend Micro Antivirus+ Security.

What are the top 5 computer viruses?

What are the top 10 viruses of all times?Morris Worm. … Mydoom. … Stuxnet. … CryptoLocker. … Sasser & Netsky. … Anna Kournikova. … Storm Worm. … Brain.More items…•

Why computer virus is dangerous?

Some computer viruses are programmed to harm your computer by damaging programs, deleting files, or reformatting the hard drive. … Even less harmful computer viruses can significantly disrupt your system’s performance, sapping computer memory and causing frequent computer crashes.