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(WTOP)   Is your ATM machine PIN number one of these 10 combinations? Yeah, you're gonna get robbed   ( wtop.com) divider line
    More: Obvious, PIN number, atm machine, random numbers  
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26399 clicks; posted to Main » on 31 Jul 2013 at 9:09 AM (4 years ago)   |   Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»

127 Comments     (+0 »)
View Voting Results: Smartest and Funniest

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2013-07-31 08:19:34 AM  
BLAAARGGGH!  They're permutations!  blargblargblargblargblargblarg
2013-07-31 08:20:09 AM  
BLAAARGGGH!  The M stands for machine!  blargblargblargblargblargblarg
2013-07-31 08:20:47 AM  
BLAAARGGGH!  The N stands for number!  blargblargblargblargblargblarg
2013-07-31 08:28:01 AM  
Those are the combinations on my various pieces of luggage.
2013-07-31 08:29:34 AM  
Well, all that's pretty much handled.
2013-07-31 08:44:45 AM  

F*cking Millennials. GET OUT OF MY BANK
2013-07-31 08:56:11 AM  
Mine is the atomic number of a particular element, followed by the last 2 digits of my old BBS phone number.
2013-07-31 09:10:17 AM  

nekom: Mine is the atomic number of a particular element, followed by the last 2 digits of my old BBS phone number.

Okay, that's old-school nerdy right there
2013-07-31 09:11:00 AM  
All right...my code is...





2013-07-31 09:12:27 AM  
images4.wikia.nocookie.netView Full Size
2013-07-31 09:12:40 AM  
Wow.. Major sense of Deja-Vu.
2013-07-31 09:13:53 AM  
No, but that's the combination on my luggage..
2013-07-31 09:13:56 AM  
I've got all those combinations on my luggage.

Also, has the Fark Department of Redundancy Department chimed in that the M in ATM stands for machine, so the redundant headline is redundant?
2013-07-31 09:14:29 AM  
ATM machine PIN number...not lost on us, subby.  +1
2013-07-31 09:14:58 AM  
Great, 1337 is not on there!

I'm completely safe.
2013-07-31 09:15:50 AM  
Grokca beat us to it.....  we should read the comments more closely before posting..
2013-07-31 09:16:22 AM  

PizzaJedi81: All right...my code is...






senses working overtime!
2013-07-31 09:16:33 AM  
Mine is
no 3 sir

d23 [BareFark]
2013-07-31 09:16:37 AM  

a3.twimg.comView Full Size
2013-07-31 09:16:40 AM  
It's why I like that my bank allows PINs from 4-8 numbers long. Imma not telling how many numbers in mine :P
2013-07-31 09:16:43 AM  
I like how gas pumps hide your pin with asterisks when you pay by debt but display your zip code for the world to see when you pay by credit.
2013-07-31 09:16:47 AM  

Frankentots: Great, 1337 is not on there!

I'm completely safe.

2013-07-31 09:17:05 AM  
I have examined the list, and I am relieved by the absence of "8209".
2013-07-31 09:17:20 AM  
And let's not forget 8068.
2013-07-31 09:17:20 AM  
I just use the last 4 numbers on the debit card.  Then I don't have to remember.
2013-07-31 09:19:04 AM  
Want a random PIN?  Throw 4 10-sided dice, write down the number.
2013-07-31 09:20:27 AM  
i1.ytimg.comView Full Size

2013-07-31 09:21:03 AM  
2013-07-31 09:21:10 AM  
I assumed everyone used the last 4 digits of their telephone number.
2013-07-31 09:22:29 AM  
8008 spells "Boob"
2013-07-31 09:23:42 AM  
What's the significance of 1004?
2013-07-31 09:24:18 AM  
I can see why most of those are on the lazy list, but why is 1004 so popular?
2013-07-31 09:25:40 AM  
It's always surprised me that more people don't do what I did and take a 4-letter word they can remember easily and use the telephone-pad number matches for the letters, since IIRC ATMs have the letters printed on the keys too...
2013-07-31 09:26:25 AM  
I thought fark filtered out PINs, like it does with SSNs...

▋ ▋ ▋ - ▋ ▋  ▋- ▋ ▋ ▋ ▋
2013-07-31 09:26:39 AM  

Spartapuss: What's the significance of 1004?

Many people also asked the significance of 1004 in the four character PIN table. This comes from Korean speakers. When spoken, "1004" is cheonsa (cheon = 1000, sa=4).


(Just FWIW, this story is a repeat from last year).
d23 [BareFark]
2013-07-31 09:26:46 AM  

Monkeyfark Ridiculous: I can see why most of those are on the lazy list, but why is 1004 so popular?

Lots of C.W.Mccall fans still out there...

'Cross the USA!
2013-07-31 09:26:53 AM  
At least if you accidently type in you PIN here on fark it changes it to stars.  See    ****   .   Try it.
2013-07-31 09:27:14 AM  

Monkeyfark Ridiculous: I can see why most of those are on the lazy list, but why is 1004 so popular?

"10-4" (as in, good buddy) I think is probably the reference.
2013-07-31 09:27:27 AM  
ATM pins should go to 7 digits. If you can remember a phone number, you can handle a 7 digit pin.
2013-07-31 09:27:41 AM  
If you've ever watched a movie with truckers in it, you know why 10-04 is popular.
2013-07-31 09:27:52 AM  
My ATM PIN used to be the first four digits of the product of the first six prime numbers in Pi divided by Planck's constant, but thieves guessed that one too easily and I lost everything.  Now my PIN just spells the word "dick."
2013-07-31 09:28:24 AM  
Didn't think banks even allowed those as PINs. You might as well walk around with a pocketful of cash.
2013-07-31 09:28:43 AM  
If you have absolutely no knowledge, the best way to pick a PIN is to simply roll 4d10, picking beforehand which die will correspond to which number. The best way to attack that would be to systematically try every combination at once, but in a random order (which is, over time, the way most likely to require the smallest number of rolls). But banks know this, and can detect it, so I clearly cannot choose the wine in front of you.

But most people don't carry 4d10, or even 1d10. So they don't pick randomly (they might think they're picking randomly, but study after study has shown that the human brain really sucks at picking random numbers). Hackers know this, and so they look for popular PINs and, when those run out, they look for information about the person -birthdays and anniversaries, for example- and try them. It doesn't work all the time, but you'll defeat the cracking checks much more often than you would with the random-draw method, so I clearly cannot choose the wine in front of me.

But we also know this works, and so since hackers aren't using a truly-random approach, we don't have to either. We can narrow the number of PINs we use, retain almost all of the strength of randomness, while adding strength by specifically countering these attacks. Just make a list of the 10 or so most common PINs, then add your "personal PINs" (important birthdays and anniversaries, and also these dates spelled backwards). You'll probably have a list of 30-odd PINs by the time you're done with this. Then roll your 4d10, and in the unlikely event that a number on your list comes up, just re-roll. You're not going to exclude enough possible pins to reduce your PIN's entropy significantly -for a four digit PIN, you'd have to exclude some 500 PINs to reduce its entropy by even one bit- but you'll ensure that the "smart" crackers will have to go through at least as many attempts as your list is long before having any chance of finding your PIN, and the crack-detector will catch them before that. So I clearly cannot choose the wine in front of you.

But, of course, if this catches on, then the most common PINs will change. New lists will have to be drawn up: your important dates might not, but other popular PINs will. So if your PIN falls on the new list -not terribly likely, but it could happen- you'll have to change it. This is a pain, so I clearly cannot choose the wine in front of me.
2013-07-31 09:28:57 AM  

Spartapuss: What's the significance of 1004?

bottom left, 0, 0, bottom right, on the keypad, quick, easy to remember.

Southern100: And let's not forget 8068.

6800 baby.
2013-07-31 09:29:13 AM  
  Damn youalizeran28 seconds
2013-07-31 09:29:23 AM  
stop phishing, subby
2013-07-31 09:29:27 AM  
For subby:

img.fark.netView Full Size
2013-07-31 09:30:11 AM  
Also, 7734.
2013-07-31 09:32:15 AM  

Spartapuss: What's the significance of 1004?

Monkeyfark Ridiculous: I can see why most of those are on the lazy list, but why is 1004 so popular?

You young pups obviously weren't around for the CB radio fad.

10-4, Good Buddy.

I have occasionally used the only declarative sentence I can make out of four digits, which described both my penury and the type of restaurant dates that I went on as a result:

2013-07-31 09:34:15 AM  
You pick your own PINs?
Mine were all assigned by the bank issuing the card.
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