Most Dangerous Computer Viruses | Top 6 Computer Viruses In The World | Cyber Security | Simplilearn

This Simplilearn cyber security video on the most dangerous computer viruses will acquaint you with the top 6 computer viruses in the world. Computer viruses have been trouble since day 1 and there have been several viruses that have brought the world to a standstill. So, let's get started and look at the worst computer viruses in history!

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0:00 ✅Computers have made our lives more effortless than ever; however, computer viruses have been trouble since day 1. Here's a list of the most dangerous computer viruses.

0:33 ✅Mydoom - Mydoom was one of the worst computer virus outbreaks in history in 2004.This malware is technically a "worm" spread by mass emailing. It broke previous marks set by the Sobig worm and ILOVEYOU to become the fastest-spreading e-mail worm ever. Mydoom caused estimated damage of $38 billion in 2004, but its inflation-adjusted cost is $52.2 billion. In 2004, 16-25% of all emails had been infected by MyDoom.

1:58 ✅I Love You - The ILOVEYOU virus of 2000 spread by delivering a fake "love letter" that appeared to be a harmless text file. This attacker, like Mydoom, sends copies of itself to all of the email addresses on the infected machine's contact list. It had spread to over 10 million PCs within a few days after its May 4 release.

2:36 ✅Code Red - Code red was a computer worm that emerged in July 2001 and infected computers running Microsoft's IIS web server. In August 2001, The Guardian reported that the FBI had issued serious warnings to organizations asking them to safeguard themselves against this worm.

3:24 ✅Cryptolocker - The crypto-virus, popularly known as crypto locker, is a ransomware virus that encrypts files on a computer and demands a ransom in return for a decryption code. The CryptoLocker malware spread between early September 2013 and late May 2014. As per the U.S. Government estimates, more than 1 billion dollars is paid in ransom each year.

4:13 ✅ Melissa - The Melissa virus was one of the biggest and earliest cyber threats in history. Released in March 1999, Melissa started spreading via email, infecting thousands of computers within hours. As per the US FBI report, the estimated cost for cleaning and repairing affected computer systems was 80 million dollars.

5:02 ✅Slammer - On Saturday, January 25, 2003, the internet was hit by a vicious computer worm known as SQL Slammer. It brought down most of the world's SQL servers and slowed down internet traffic.The New York Times reported that Microsoft admitted that some of its machines had gone unpatched and that its MSN Internet service also had significant slowdowns due to the Slammer worm.

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