The Worst Typo I Ever Made

When 'undo' won't do. • Sponsored by Dashlane, the password manager. Get a 30-day free trial at • MORE BASICS:
Written with Sean Elliott
Graphics by William Marler
Audio mix by Graham Haerther
I'm at
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and on Instagram as tomscottgo




  • Thanks to Dashlane for returning to advertise on this video! If you're techie enough to be watching this, you should be using a password manager:

    Tom ScottTom Scottหลายเดือนก่อน
    • If im techie enough to be watching this, i dont give away my passwords to some random crappy company.

      Lirei TaichenLirei Taichen10 วันที่ผ่านมา
    • And this is why censorship is bad

      FoopFoop16 วันที่ผ่านมา
    • Nintendo's "wigger Wednesdays"

      ship another shipship another ship18 วันที่ผ่านมา
    • with me it was formatting the source drive & then imaging the blank new drive over it so i RAPIDLY learned to do data recovery

    • 101 relies your welcome

      Jacob BarnettJacob Barnettหลายเดือนก่อน
  • owosecond

    VyladenceVyladence2 ชั่วโมงที่ผ่านมา
  • I just lost 5 years worth of files from work, college, 2 masters degree thesis drafts, 2000 photos, 1 year worth of lab research and everything else on my computer because it was cold, my hands were shaking and I accidentally dropped my phone on my PC, right where my HD was located. And of course I didn't have a backup. And it would cost around 1000 bucks to *try* to retrieve my files, with little to no guarantee it was work. Aaaaaand I have to buy a new pc. Huh. Guess I learned it the hard way.

    ivoryivory3 ชั่วโมงที่ผ่านมา
  • God this gave me anxiety 😰 been there done things like that

    Akshat ChananaAkshat Chanana9 ชั่วโมงที่ผ่านมา
  • The whole video I was nervous and suspicious that all the events are going to lead to nuclear reactor meltdown.

    YnteryYntery14 ชั่วโมงที่ผ่านมา
  • onosecond

    SohamTheNotSoCoolBoiSohamTheNotSoCoolBoi16 ชั่วโมงที่ผ่านมา
  • I thought ono was the typo for one 😂

    Dr MysticDr Mystic22 ชั่วโมงที่ผ่านมา
  • Content

    Audrey JensenAudrey Jensenวันที่ผ่านมา
  • “The bruh second”

    Payday tutorial guyPayday tutorial guyวันที่ผ่านมา
  • I think your response wasn't "oh,no" it must be something like and then "FFFFFFFFFFFFFFFFFF" and continue with longest f word you can say with one breathe

    Selçuk BaşaranSelçuk Başaranวันที่ผ่านมา
  • I think it's the ohnosecond

    Daniel HoeflerDaniel Hoeflerวันที่ผ่านมา
  • I always have backup for my "homework" folder

  • His face after the type ¯\_(ツ)_/¯

    Bilakshan PurohitBilakshan Purohitวันที่ผ่านมา
  • I learned from being in music production, way before I ever became a dev: if you don't have it in 3 places you dont really have it.

    Dan WrightDan Wright2 วันที่ผ่านมา
  • for phone photo backups you should use google photos it's free and great

    INMAR TVINMAR TV2 วันที่ผ่านมา
  • My biggest mistake was a switching of terms. I told support, "I have transferred all the data from the *large* hard drive to the *small* hard drive. Feel free to reformat the *large* hard drive." But I had it the wrong way around. They did exactly as I said and reformatted the drive with all the data on it. All of it. All the data. All. Years of work. And I didn't find out about it for two weeks. My onosecond came two weeks after my mistake. I guess that makes it an onofortnight.

    Algolei IAlgolei I2 วันที่ผ่านมา
  • I want to thank you for reminding me to save, just after I did it, my computer crashed, and the animation I spent working on all day today would have been completely lost

    Cat DragonCat Dragon2 วันที่ผ่านมา
  • The best password manager is a single notebook and a pen.

    Hallo! Mijn naam isHallo! Mijn naam is2 วันที่ผ่านมา
  • tuff

    Garrett LindGarrett Lind2 วันที่ผ่านมา
  • f

    GG 42 [GER]GG 42 [GER]2 วันที่ผ่านมา
  • this video is pain

    StarPartyStarParty2 วันที่ผ่านมา
  • CONTENT edit: Whoops, had written a 149,647 word, really thoughtful comment but accidentally deleted it.

    A Pillowface ProductionA Pillowface Production2 วันที่ผ่านมา
  • content content content content content content

    Stephen The Macaroni PenguinStephen The Macaroni Penguin2 วันที่ผ่านมา
  • The Coincidence that "onosecond" can also be a typo of "one second".

    panthereroussepanthererousse2 วันที่ผ่านมา
  • Told you so. It's a London deal.

    Kai-Uwe MerkelKai-Uwe Merkel2 วันที่ผ่านมา
  • When you accidentally send the answer sheet to your teacher ...onosecond

    PluxPlux3 วันที่ผ่านมา
  • 6:11 About here I started to realize where this was going

    Stray OrionStray Orion3 วันที่ผ่านมา
  • Oh buddy. If only the TH-vision comments allowed pics I would give you my Reckless In Live badge

    anniekate76anniekate763 วันที่ผ่านมา
  • How old is Tom?

    Forrestbump23Forrestbump233 วันที่ผ่านมา
  • tl:dw

    D HD H3 วันที่ผ่านมา
  • Thats very much oof

    ExarpoExarpo3 วันที่ผ่านมา
  • The examples of "onoseconds" gave me anxiety

    gamingLegaciesgamingLegacies3 วันที่ผ่านมา
  • Didn't you have tranlogs?

    ДенисДенис3 วันที่ผ่านมา
  • Tom - My worst typo ever Skeppy - Hold my keyboard

    Ratyansh GargRatyansh Garg3 วันที่ผ่านมา
  • I have to admit there's probably no database with that much content in it.

    Petr SkálaPetr Skála3 วันที่ผ่านมา
  • Definitely an onosecond

    Drake ClelandDrake Cleland3 วันที่ผ่านมา
  • owosecond

    Wet MoteWet Mote3 วันที่ผ่านมา
  • Why is this so hard to stop watching? I literally know the Smallest bit about programming which wouldn't put me ahead of anyone in any way but I can't look away! I just can`t.

    Oscar CowieOscar Cowie3 วันที่ผ่านมา
    • See if you can spot the Easter Egg related to this Video.

      Oscar CowieOscar Cowie3 วันที่ผ่านมา
  • Why does this just sound like him justifying himself

    Super réalisateur Trop coolSuper réalisateur Trop cool3 วันที่ผ่านมา
  • Oh no second is genius!

    1 Subscriber Before December1 Subscriber Before December3 วันที่ผ่านมา
  • content

    PKMNCharitard - stick nodes and rough animatorPKMNCharitard - stick nodes and rough animator4 วันที่ผ่านมา
  • Im always scared that my backups could stop working when I need them because I only could afford an external hardisk as a backup, so I was thinking about having a backup for the backup but that would make me anxious all over again... It's painful...

    Daniel OgunleyeDaniel Ogunleye4 วันที่ผ่านมา
  • Oof size large

    Toasted GameingToasted Gameing4 วันที่ผ่านมา
  • content

    The TechnocratsThe Technocrats4 วันที่ผ่านมา
  • Life lesson: NEVER PUT THE EMAIL RECIPIENT IN BEFORE YOU WRITE THE EMAIL. I ended up sending the email “sup sheidow lady” to the principal of my school.

    Minty_ChocMinty_Choc4 วันที่ผ่านมา
  • This is the most realistic greenscreen I’ve ever seen.

    Mariella CusanoMariella Cusano4 วันที่ผ่านมา
  • Protip: learn how to dump *all* (both kernel & user) memory to a file on every machine you work on in a single command. That has saved my life a few times. Chances are good that you could have dug up most of your content that way, as memory is usually not emptied, but kept around until overwritten or until garbage collection runs. This works for databases, form fields in browsers, etc. Everything has to be stored somewhere :) And if it's not in memory then the same goes for disk storage (although be sure to know when to dump memory or raw disk, so that you don't overwrite your stuff on disk with your memory dump).

    Terrence KoemanTerrence Koeman4 วันที่ผ่านมา
  • That's always this kind of story in Computer Science courses (or similar courses), and what I've always heard from these was that it was easy to restore the data using the database log

    Gabriel Rodrigues de AraujoGabriel Rodrigues de Araujo4 วันที่ผ่านมา
  • The thing is, you can divide software developers into two categories: Ones who have made that kind of mistake, and ones who are going to. Because the _only_ thing that stops you doing that is personal exposure to that visceral feeling of your stomach trying to exit your body by both routes simultaneously.

    Zoë MackayZoë Mackay4 วันที่ผ่านมา
  • SexPeni$?

    Jerry 0Jerry 04 วันที่ผ่านมา
  • What about OwOSecond?

    Jerry 0Jerry 04 วันที่ผ่านมา
  • should definitely be "ohnosecond"

    Ryan StallardRyan Stallard4 วันที่ผ่านมา
  • content? content content! content..?

    Buneon check channel discriptionBuneon check channel discription5 วันที่ผ่านมา
  • Last year I was working on a rom hack of an old video game. Using a tool I accidentally change a parameter out of range, now the tool I used to modify the parameter can’t find it (because it’s over the parameters its looking for) and the part of the game I modified is unplayable. I lost months of work just because I never took the time to make a backup.

    Manuel GManuel G5 วันที่ผ่านมา
  • content content content content content content content content

    TobbAnimationsTobbAnimations5 วันที่ผ่านมา
  • I used to lose my stop-motions all the time because I never backed them up. :(

    BrickHabitat ProductionsBrickHabitat Productions5 วันที่ผ่านมา
  • ‘content’

    Goodname21Goodname215 วันที่ผ่านมา
  • Onosecond is just a synonym of bruh moment

    Fuzzywhale27Fuzzywhale275 วันที่ผ่านมา
    • T r u e .

      Giovanni MiguelGiovanni Miguel4 วันที่ผ่านมา
  • Oh so this was green screened

    ShadzShadz5 วันที่ผ่านมา
  • Sorry But Why Do People Speak Like This It Is Very Annoying ; - ;

    TreecapTreecap5 วันที่ผ่านมา
  • The more i listen to him talk the more i realise i dont know a lot of stuff

    Sim PrasadSim Prasad5 วันที่ผ่านมา
  • content!

    Turkey A.Al-BazeiTurkey A.Al-Bazei6 วันที่ผ่านมา
  • content content content

    Turkey A.Al-BazeiTurkey A.Al-Bazei6 วันที่ผ่านมา
  • 8:55 Damn maybe you should've used Apple's Time Machine ;)

    Feel The HertzFeel The Hertz6 วันที่ผ่านมา
  • One memorable onosecond of mine was when I finished a PHP script at 2:00 AM. I guess it was because I was tired, but somehow I managed to screw up so hard that the server crashed every time someone submitted a form. Awful time I had the next day.

    LeighAnn RitzenthalerLeighAnn Ritzenthaler6 วันที่ผ่านมา
  • I'm constantly backing up my stuff. And generally whatever program I'm using is set to automatically back up. But I'm really paranoid.

    A AdamsA Adams6 วันที่ผ่านมา
  • I mean the website is doing what it's supposed to do, it's showing content

    Marko KandicMarko Kandic6 วันที่ผ่านมา
  • content

    OwO UwUOwO UwU6 วันที่ผ่านมา
  • Fun fact: I almost turned in a project where I left out the “r” in “shirts”

    The 711DevinThe 711Devin6 วันที่ผ่านมา
  • The lesson is, always back up your work

    Timothy Y.Timothy Y.6 วันที่ผ่านมา
The Worst Typo I Ever Made