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Most Dangerous Computer Viruses In The World

December 20, 2019

This video was made possible by Wix if you are ready to create a website head over to to try out one of their premium plans right now Many of us at some point in time have had a computer start acting very strange There are a lot of threats out there and many come in the form of viruses computer viruses got their name because they act like viruses and Replicate they infect lots of files on a machine and can be spread to another machine by doing things like sending files to someone else Or using an infected USB Drive on another computer Then you have worms adware Trojans and rootkits which are hard to detect and can give attackers control of your machine Perhaps even more frightening are ransomware attacks where someone gets a hold of your data Sometimes sensitive data and makes you pay to get it back Today we’ll look at some of the biggest attacks on computers in this episode of the infographic show The world’s most dangerous computer viruses. Number one: SQL slammer / sapphire This one caused havoc in the USA in 2003 It’s thought that it cost those who were hit in all about 1 billion dollars It affected web servers leading to bank ATMs crashing It messed with continental airlines electronic ticketing and it blocked 27 million people from the internet even Seattle’s Even Seattle’s 911 services were affected as Wired explains slammer used an attack on one type of software but then infected machines would spread this worm through the net. The New York Times writes that what was so worrying about this virus was Its virulence it infected 75,000 servers in just 10 minutes It was stopped eventually by patches and antivirus software But the creator of this virus is still unknown It also reappeared briefly in 2016 coming from IP addresses in the USA China Mexico, Ukraine Vietnam, Russia, Venezuela, Argentina and Thailand Number 2, Melissa. Apparently the villain behind this virus named it after an exotic dancer It began as an infected Word document posted on an Usenet group if that was opened It would send itself to 50 people on someone’s Microsoft Outlook email program That might not sound too bad But it created mayhem when emails were being sent at a rate that really messed with companies and big corporations so much so that in 1999 Microsoft shut down incoming email Users would get a message such as Here is that document you asked for don’t show anyone else and there was an attachment with it according to one source It cost people governments and companies in all about 1.2 billion dollars Now anyone watching this show should know that you should never open attachments that look a bit sketchy But it seems back in those days people weren’t yet? So savvy the creator of the virus was caught and sentenced to ten years in prison But only served 20 months with a $5,000 five member three, Anna Kournikova This virus was the brainchild of a 20 year old Dutch guy named Jan DeWit He used the good-looking tennis player, Anna Kournikova as bait you basically would receive an email saying you had a photo of her But if you clicked on the file it launched a viral visual basic script that meant everyone in your address book was forwarded the same thing this affected millions of people and Overloaded servers all over the world this gave the young duit afraid as he didn’t think it would cause so much of a problem sources said that by the time he understood what the worm did he had conferred with his parents and decided to turn himself in to The police he was lucky though and got away with just having to do 150 hours of community service The virus was even in an episode of the sitcom friends number 4 Sir camp this nasty worm also made Microsoft Windows systems its target again it spread far and wide as it sent itself to people in your email address book you Usually but not always saw the following message I send you this file in order to have your advice What was clever about this virus is that it would choose random files from your computer and send them to others This was particularly bad for governments who don’t want random files being sent out It said it affected 12% of computers in North America and 11% of computers in Europe CNET writes that it cost 1 billion dollars in damages related to cleaning infected systems and to lost productivity It also caused some blushes No one has ever been arrested for creating this number 5 Code Red estimates on the damage caused by Code Red range in the billions Webpages that were affected suddenly got the message Welcome to worm comm hacked by Chinese norian explains the HTTP requests exploits unknown buffer overflow vulnerability Which allows the worm to run on your computer? The malicious code is not saved as a file but is inserted into and then run directly from memory It has been called one of the most sophisticated attacks ever that almost brought down the internet infecting Microsoft Internet Information server Which many websites run on it was what is called a distributed denial of service attack Which means overwhelming websites with too much traffic which brings them down? According to the Scientific American it might not have been China who was the culprit though? There were many investigations But ultimately no one knows where it came from number 6 configure Now we come to the really costly infections Configure is said to be the most destructive worm of all and it cost those infected around nine billion dollars It was discovered in 2008 and has in its lifetime infected as many as fifteen million computers It affected police departments in the UK as well as the military and really messed with their operations It infects Windows operating systems and it lasted a long time as it kept getting past patches and antivirus software It’s a bit of a mystery to security experts But they know it takes over a machine and then infects other machines in the network number seven. I love you you have to love the name of this nasty virus a bit like other things we have talked about it comes as an email with The words I love you in the subject line. Well, that sounds nice as so many businesses use outlook It’s spread fast because folks open the attachment once they did that Everyone else in that address book got the same email not only did it spread quickly But it also deleted many of your files including every JPEG and mp3 it reached 45 million people in one day in 2000 it was so big that Ford Motor Company shut down its email It was a little like Melissa, but it sent mail to all your contacts and deleted personal files Even the Pentagon CIA and the British Parliament shut down their emails The virus was eventually linked to some young programmers in the Philippines and it’s thought the cost of this virus was around fifteen billion dollars number eight so big this happened in 2003 and included a worm and a Trojan horse all in one you’d get an email with any number of subject lines such as Re wicked screensaver or re approved and then there would be an attachment CNN wrote in 2003. So big dot F breaks virus speed records It was said at the time to be the fastest growing virus ever it stopped Airlines from operating slowed down many major corporation and worried the government it mostly affected the USA a Cybersecurity expert wrote at its peak one out of 17 emails that we were processing were a copy of the so big F virus Certainly, we haven’t seen numbers like this before It is spreading at a very fast rate and the volumes are high in the USA 40 million emails were scanned and half of them contained the virus it said it cost a massive 37 point 1 billion dollars and Finally number 9 my doom a fitting name for what? some people say was the costliest virus of all time with an estimated 38 billion dollars in damages in 2004 it infected one in every 12 emails spread via email and also via peer-to-peer file-sharing networks it was so big that Google was worried a reward of 250,000 was offered to anyone who helped catch the perpetrators people said it was someone in Russia But that has never been proven again, you would get an email and open the attachment then your friends would be emailed But because it also got into peer-to-peer sharing it spread fast to this date My doom is the greatest virus ever speaking of change. When is the last time you updated your website now? It’s probably the time to do it and when you do do it use Wix with Wix You can build a safe robust fast and most importantly modern website and best of all you have infinite design possibilities Which does all the complicated stuff and it doesn’t just host websites It has a solution for mailboxes email marketing and more no matter what kind of professional solution you’re looking for Whether it’s something in e-commerce music hotels events or restaurants Wix can help you get it done right make that website You’ve been thinking about and support the infographic show at the same time by going to what X comma slash go slash Infographics or by clicking the link in the description. So can you add to this list? Were you ever infected by a computer virus? Let us know in the comments? Also, be sure to check out our other video called 10 most dangerous hackers of all time. Thanks for watching And as always don’t forget to like share and subscribe. See you next time


  • Reply The Infographics Show November 12, 2018 at 11:47 am

    What was the worst thing that happened to you because of a computer virus? What was the most valuable thing you lost because of it?

  • Reply Jimmy_the_joke 06 November 2, 2019 at 8:04 pm

    Puts the virus link in description

  • Reply Fishy November 2, 2019 at 10:47 pm


  • Reply slovan01 November 3, 2019 at 2:19 am

    I got my ps4 account hacked then changed my name for 5$ and it still works 🙂
    No hackers 😀

  • Reply Mr. Man November 3, 2019 at 2:36 am

    I know the worst virus ever,

    The battery,
    This virus takes control of your electronics life, and can cause your electronic to die.
    Dont worry, you can use special antivirus software known as "chargers" to temporarily shut off the virus.
    The battery virus has affected, every electronic on earth, luckily, we have created the charger, the antivirus software used to temporarily defeat this evil virus. sometime in the future, we will have completely defeat the battery virus, so that all electronics will be safe from dying.

  • Reply Pi- Cuber November 3, 2019 at 12:27 pm

    Hi !!!!

  • Reply Amir C November 4, 2019 at 6:18 pm

    Worst computer virus: cliffhangers on videos and books

  • Reply Vynson Yap November 5, 2019 at 9:04 am

    i just hate these people they are so selfish

  • Reply Trainfan 2019 November 5, 2019 at 10:29 am


  • Reply Same old Youtuber November 5, 2019 at 1:50 pm

    0:12 nope

  • Reply ThatRandomPerson November 7, 2019 at 2:37 am

    Bruh this is why I use linux

    btw I use arch

  • Reply Mary Rodriguez November 7, 2019 at 7:16 pm

    I have a Trojan Virus in my Laptop.

  • Reply Skunk Squad November 8, 2019 at 6:44 am

    me when i download something
    norton: V I R U S ! ! !

  • Reply Dankster Gangster November 8, 2019 at 2:47 pm

    the STRONGEST virus is…..

    No Wi-Fi virus

  • Reply Dr. Doggo November 8, 2019 at 7:59 pm

    If I got the ILOVEYOU virus, I would know it was a virus because nobody loves me

  • Reply SeaGupGup November 8, 2019 at 9:52 pm

    Morris squirm

  • Reply JURO • November 9, 2019 at 2:07 pm


  • Reply etfukuda1 November 9, 2019 at 3:11 pm

    AND 000.exe

  • Reply etfukuda1 November 9, 2019 at 3:11 pm


  • Reply etfukuda1 November 9, 2019 at 3:11 pm


  • Reply etfukuda1 November 9, 2019 at 3:12 pm


  • Reply etfukuda1 November 9, 2019 at 3:13 pm

    Wannacry its very danger VIRUSES SITE

  • Reply etfukuda1 November 9, 2019 at 3:15 pm


  • Reply Techno vikingsnephew November 9, 2019 at 5:44 pm

    The UK and the Republic of Ireland are two different countries…

  • Reply Catrinthe_Cat :3 November 9, 2019 at 8:24 pm

    What's with Petya?

  • Reply Baloo 2017 and Mangle November 10, 2019 at 3:59 pm

    Me: Downloads all of th- "Sorry! Your computer has been compromised."

  • Reply uwu LightCat November 11, 2019 at 12:44 am

    I got a trojan horse notif on a sketchy site, i did my research on the "anti virus" on the wiki it said It takes form as a anti virus trying to prevent trojan. I am mega smart

  • Reply emily wobbe November 11, 2019 at 6:19 am

    How about killbot.exe

  • Reply The Secret Letters of a Hacker November 12, 2019 at 3:47 am



  • Reply Uganda Knuckles Knows Da Wae! November 12, 2019 at 4:17 pm

    Atm ive got a Trojan virus on my windows 10 dell pc and it slows down my computer so much and makes it hard to even turn it off

  • Reply Spyro 19 November 13, 2019 at 2:27 am

    IDK why i'm saying this but on so big you forgot the n in billion

  • Reply Spyro 19 November 13, 2019 at 2:27 am

    sorry nvm in just moved into the wall

  • Reply deee fasm,f November 13, 2019 at 11:02 pm

    Little did they know that the most dangerous virus in the video was the wix.exe file when you create a website.

  • Reply Θα χαϊδέψω gayeeks November 14, 2019 at 8:38 am

    My laptop has been infected many times before some time I was searching for virus I "found" one which was harmless what I want to say I can't find virus to infect my laptop when I want but it gets infected when I don't want

  • Reply Evangeder November 14, 2019 at 9:29 pm

    And where's CIH (Chernobyl) virus? :p

  • Reply zer0 November 16, 2019 at 2:01 am

    if i ever got an email saying ILOVEYOU, I would already know its a virus

    because no one loves me

  • Reply zer0 November 16, 2019 at 2:03 am

    i think you forgot to add ODers on roblox

  • Reply altom guerrerro November 16, 2019 at 6:51 am

    Your are WorsT

  • Reply Mayank Rawat November 17, 2019 at 11:34 am

    Most of the viruses used Microsoft . Hmm . Need to buy a MacBook .

  • Reply Cyber Lake November 18, 2019 at 3:54 pm

    PC viruses are very rear thing nowadays

  • Reply Alexovo Život November 19, 2019 at 11:42 am

    What about wannaCry ?

  • Reply Will Gutierrez November 20, 2019 at 12:29 am

    How about nice viruses like butterflysondesktop

  • Reply clarkberk November 20, 2019 at 7:42 am

    The most strong virus is


  • Reply Benjamin Tim November 20, 2019 at 2:52 pm

    AV360 got me a long time ago… anybody remember that one? Posed as an anti-virus

  • Reply Kyle Flowers November 20, 2019 at 6:05 pm

    Mutahar has joined the chat

  • Reply Michael Mueller November 21, 2019 at 3:46 am

    worms spread, not viruses

  • Reply 74j November 23, 2019 at 1:03 am

    How to make your computer run faster


  • Reply Cy Gaming And Animation November 23, 2019 at 10:25 pm

    my computer got the blue screen of death

  • Reply arcprop arcproperties November 24, 2019 at 2:52 am

    I had a botnet.

  • Reply Fire Peashooter November 24, 2019 at 3:29 am

    1. Segurazo
    2. Chromium

  • Reply klosevn November 24, 2019 at 5:43 am

    what if this video gives me virus

  • Reply capistrano Gian November 24, 2019 at 9:25 am

    I don't know if i should be proud to our country or he embarrassed ??

    From Philippines

  • Reply Red The Blu November 24, 2019 at 8:48 pm

    I've gotten a Trojan virus, and my computer had the blue screen of death. :C

  • Reply xThe_noJx November 24, 2019 at 9:06 pm

    I'm terrible at being a Millenial. The only names I recognize are the Computer brands.

  • Reply besty buddy November 24, 2019 at 10:47 pm

    That voise

  • Reply DoggoInSpace November 25, 2019 at 5:54 am

    Hehehe to ddos ur self just type in cmd
    Ping (your ip) -t -l 65500

  • Reply Action Finn November 25, 2019 at 8:42 am

    i got infected by the tiny virus and it destroyed all the applications on my computer

  • Reply Action Finn November 25, 2019 at 8:47 am

    here is more info on the tiny virus
    When Tiny is executed, it becomes memory resident. It infects files as they are opened, placing itself in the PE header. Though the virus itself is 185 bytes, it will increase the PE header by 256 bytes. The length of the file name may also determine whether the virus infects a file.

  • Reply I need some sleep November 25, 2019 at 2:26 pm

    This is why we use Chinese rip off computers

  • Reply Dead Memes November 26, 2019 at 1:57 am

    You guys are my favorite channel to learn stuff

  • Reply yanapohng gaming November 26, 2019 at 3:48 pm

    I have anit virus XD

  • Reply Rosalia Katharin November 26, 2019 at 4:30 pm

    ??i love viruse ⚠Please help my Filles Or miusic Filles Cant Open! Gonna Hijack Dns Servers By Hackers How End this Cause ! help MEℹ The Infografic Showℹ

  • Reply JosH November 26, 2019 at 10:06 pm

    What if someone promoted there product VIRUS??

  • Reply skoma is alpha November 28, 2019 at 10:20 am

    Anyone noticed that one of the emails said "New Infographics video showed up!" at 2:26 LOL

  • Reply bene bennet November 30, 2019 at 5:23 am


  • Reply Gamer Team December 1, 2019 at 2:06 pm

    I have TROJAN me what to do please.

  • Reply That's depressing December 1, 2019 at 7:07 pm

    Phew it didn't hit Yakima ?

  • Reply Super Set Games December 3, 2019 at 1:39 am


  • Reply disabled submarine vet December 5, 2019 at 2:49 am

    alot of out atms run os2 and unix which virus are hard to affect.

  • Reply Tree The Youtuber December 5, 2019 at 12:40 pm

    Oh you mean Lime-Wire?

  • Reply ProCarlYT December 5, 2019 at 12:49 pm

    So virus are created by people

  • Reply Mezennie_ 127 December 6, 2019 at 1:39 am

    Morris Worm; Am I A Joke To You?

  • Reply carlos mercado December 6, 2019 at 7:36 am

    That Filipino guy who created the I love you virus was quickly bailed out and hired by U.S.

  • Reply POPPA SMURF December 6, 2019 at 10:03 pm

    if you see a link directing you to taylor swift music DO NOT CLICK ON IT!!!! you won't get a virus, but the music sux. ?

  • Reply Luke Pearson December 7, 2019 at 12:24 am

    I got one

  • Reply Soup Network December 8, 2019 at 8:20 am

    No viruses for my XP VM 🙁

  • Reply smileblockbot December 8, 2019 at 10:23 pm

    i didn't get any of those computer virus

  • Reply Maite Lopez December 9, 2019 at 3:48 am

    Can you do 10 most dangerous Android viruses?

  • Reply The Blue Squad Tiny December 10, 2019 at 4:19 am

    When computor viruses play Plauge Inc evolved

  • Reply Coka-cola December 10, 2019 at 10:07 am

    You can download Malwarebytes and get a trial premium no credits asked. It removes the trojan virus.

  • Reply cerx fn December 10, 2019 at 10:38 am

    MEMZ VIRUS 10/10

  • Reply Rom Villahermosa December 10, 2019 at 12:00 pm

    the worst viruses are ads in youtube and salty gamers

  • Reply anomaly 096 December 11, 2019 at 5:36 am

    buys a computer
    Gets every virus
    Me:have I walked into the death zone?

  • Reply The Mad Commenter December 11, 2019 at 6:08 am

    Use our state of the art VPN which is quite easy to get through with a bit of…. uhhh…. fuckery.

  • Reply Bingbangboogie 94581 likes roblox and piano titles December 11, 2019 at 11:49 pm

    Computer viruses sometimes make the thing explode

  • Reply Nitay Harari December 12, 2019 at 9:18 am

    Anyone noticed there was no Apple machines effected? Apple forever!!!

  • Reply NN2222 -Za Ultimate AYANDO Shipper December 12, 2019 at 9:25 pm

    Russians: tImE tO dEsTrOy tHe WoRlD bY cReAtInG mAlwArE

  • Reply VinnyMagoo December 13, 2019 at 12:16 am

    Little brother installing free GTA be like:

  • Reply SmolBoi December 13, 2019 at 6:02 pm

    I want to know what the Melissa attachment said.

  • Reply crazyactor 08 December 14, 2019 at 9:11 am

    4:37 I heard a airhorn

  • Reply Xbox Professional December 14, 2019 at 3:34 pm

    one time i got a pop up that said your computer is bl0cked and it tried to download something but windows defender stopped it.

  • Reply Justus K December 14, 2019 at 8:44 pm

    very nice

  • Reply RiverBlocksTV December 15, 2019 at 4:29 am

    You missed memz virus

  • Reply Flix December 15, 2019 at 6:26 am

    Why do computer viruses exist

  • Reply Flix December 15, 2019 at 6:33 am

    Virus: hahahah I’m gonna make you cry
    Me: ya I just use this pc to browse the internet…… sooo ya.
    factory reset: I’m gonna end this intruder now.

  • Reply Don’t mind me I’m just a New person December 16, 2019 at 1:57 am

    Where’s the “you are an idiot” virus?

  • Reply Federal Bureau of Investigation. December 16, 2019 at 11:28 am

    Random fun fact:

    Mellisa (Méllisa) (μέλισσα) with double S means bee, in Greek!

    I am Greek so yeah, let's let people know random words XD

  • Reply FA00 December 17, 2019 at 3:24 am

    Where is Wannacry?

  • Reply Wings Of gaming December 17, 2019 at 4:24 am

    Most dangerous virus: free Minecraft download

  • Reply HubPlayz Gaming And More! December 17, 2019 at 4:10 pm

    Most dangerous virus is,

    Internet Bill

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