What Are The Top 5 Computer Viruses?

Why computer viruses are 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..

What does the I Love You virus do?

The ILOVEYOU virus comes in an e-mail note with “I LOVE YOU” in the subject line and contains an attachment that, when opened, results in the message being re-sent to everyone in the recipient’s Microsoft Outlook address book and, perhaps more seriously, the loss of every JPEG, MP3, and certain other files on the …

What is the scariest virus of all time?

The Scariest Computer Viruses Ever and The Damage They Caused The Scariest Computer Viruses Ever and The Damage They CausedCryptoLocker. … Stuxnet. … Storm Worm. … Leap-A/Oompa-A. … The Sasser. … MyDoom. … SQL Slammer/Sapphire. … Nimda.More items…•

How do you tell if your computer has a virus?

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…•

How can I protect my computer from viruses?

But let’s take a look at eight additional ways you can protect yourself from viruses and malware:Keep your software up to date. … Don’t click on links within emails. … Use free antivirus software. … Back up your computer. … Use a strong password. … Use a firewall. … Minimize downloads. … Use a pop-up blocker.

What is the biggest computer virus?

Conficker infected millions of computers across 190 countries, making it one of the largest virus infections in history. Mydoom – Beginning on January 26th 2004, Mydoom became the quickest-spreading email worm ever, surpassing ILOVEYOU and has since never been topped.

Are viruses still a problem?

Viruses may have gone the way of dinosaurs, but attacks on computer systems are still very much in existence. … Cyber threats however, are still very much a part of the modern picture and are often referred to simply as “viruses” because the word has become a catch-all for any type of security issue.

What are the most famous computer viruses?

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.

What is the most damaging computer virus?

10 Deadliest Computer Viruses of All TimeILOVEYOU. ILOVEYOU is considered one of the most virulent computer virus ever created. … Code Red. Code Red first surfaced on 2001 and was discovered by two eEye Digital Security employees. … Melissa. Named after an exotic dancer from Florida, it was created by David L. … Sasser. … Zeus. … Conficker. … Stuxnet. … Mydoom.More items…•

Which is the latest virus in computer?

Ransomware is malware which encrypts your files until you pay a ransom to the hackers. “Clop” is one of the latest and most dangerous ransomware threats. It’s a variant of the well-known CryptoMix ransomware, which frequently targets Windows users.

What are the 5 most common ways to get a computer virus?

5 Most Common Ways To Get Computer VirusesOpening attachments or links from unknown or spoofed emails. note: shown above are two examples of how viruses can often appear as legitimate messages, but are designed to trick the computer user. … Downloading software from malicious sites. … Online Ads. … Social media. … Unpatched software.

How do I get rid of a virus?

How to remove viruses and other malware from your Android devicePower off the phone and reboot in safe mode. Press the power button to access the Power Off options. … Uninstall the suspicious app. … Look for other apps you think may be infected. … Install a robust mobile security app on your phone.