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submitted 1 day ago* (last edited 1 day ago) by insanemantis@lemmy.world to c/youshouldknow@lemmy.world

Use two fingers to put in your PIN

One actually presses, the other one doesn't

You could generate an absurd amount of possible PINs that could work on your card, giving any PIN peepers a seriously hard time, should they somehow have the intent to get ahold of your card and PIN through spying and pickpocketing

Safes, doors, etc. same principle

Even better tip: commit your false finger movements to muscle memory so not even a recurring stalker can bypass it

This will be totally overboard, and totally unnecessary, most of the time. But like any kind of security, it's good to have it even if you hopefully never need it

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[-] Ydna@lemmy.world 4 points 9 hours ago

If somebody steals your card, wouldn't they run the transaction as credit? They wouldn't need your PIN.

[-] Swedneck@discuss.tchncs.de 2 points 48 minutes ago

this feels like a very american thing to me, everyone here has debit cards where you can at most get a couple hundred dollars per month from making purchases where you simply tap the card to pay, before it starts requiring you to enter the PIN

[-] prole@lemmy.blahaj.zone 9 points 1 day ago* (last edited 1 day ago)

Sometimes I'll do like jazz hand fingers on the keypad so it looks like I'm just jamming a bunch of random numbers.

Or I'll mimic something like this but without actually pressing the buttons

I use my penis as a stylus for optimal security--no way the casual viewer can actually see it in person.

[-] InGodWeThrust@lemmy.zip 3 points 1 day ago

Not a casual, no, but us trained competitive penis enjoyers can catch every stroke with ease

[-] Zier@fedia.io 48 points 1 day ago

I usually speak very loudly while entering my PIN, "1 2 3 4"

[-] Swedneck@discuss.tchncs.de 1 points 48 minutes ago

0, 0, 0... 0!

[-] corsicanguppy@lemmy.ca 5 points 1 day ago

My workmate used to do this 30 years ago.

I started copying him - same funny fake password - when I moved on. Then I left that job after 8 years. I came back to that crew 10 years after that, to where most of them had moved en masse after a calamity, and my casual workmate from back then was doing it a decade later -- same funny fake password. I laughed so hard.

[-] Chozo@fedia.io 20 points 1 day ago

I've got the same combination on my luggage!

[-] MeThisGuy@feddit.nl 1 points 35 minutes ago* (last edited 34 minutes ago)

Samsonite!

duh.. it's right there on the briefcase ya goof!

[-] krakloskewm@lemmy.zip 11 points 1 day ago

Something that is potentially helpful for stuff like this:

Every nuneric keypad ive eever seen is laid out in the same way and therr is usually a little bump over 5 which is the middle number.

If you can orient yourself by touch with the bump then the numbers will always be in thr same place and you can use this trick and cover the pad with your hand to be extra discrete.

Its really not hard. Like. Blind people can function in the world.

[-] ExLisper@lemmy.curiana.net 2 points 11 hours ago* (last edited 11 hours ago)

Most card readers I've used in recent years have touch screens.

This is pretty much the norm now.

[-] prole@lemmy.blahaj.zone 3 points 1 day ago

I learned to use the numpad by touch in high school typing class.

Still probably the most useful class I took in high school

[-] naticus@lemmy.world 1 points 13 hours ago

We had very different experiences in typing classes. My teacher would regularly show up drunk (it was my first class of the day, so he was likely drinking until early morning hours), and eventually we just got all our instruction from his student teacher.

The ol' two-finger entry method. It's been around longer than PINs.

[-] socsa@piefed.social 6 points 1 day ago

Two fingers are ok, but I like to throw in a pinkie just to spice things up.

[-] MajorMajormajormajor@lemmy.ca 3 points 1 day ago

How shocking.

[-] JasonDJ@lemmy.zip 29 points 1 day ago

I prefer calling it "two in the PIN".

[-] ILikeTraaaains@lemmy.world 8 points 1 day ago

Two in the PIN, one in the PUK

[-] Valmond@lemmy.dbzer0.com 1 points 10 hours ago

Thank you that made me laugh out loud 😁!

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[-] theherk@lemmy.world 5 points 1 day ago

Two fingers one pin

[-] AbouBenAdhem@lemmy.world 22 points 1 day ago

My method is to put four fingers over the four digits, and keep them in place while moving all of them for each press.

Assuming a four-digit code, your method generates 2^4^=16 possibilities; mine generates 4^4^=256.

[-] insanemantis@lemmy.world 6 points 1 day ago

Solid idea, I might try that actually

[-] welfare_wizard@lemmy.zip 5 points 1 day ago* (last edited 1 day ago)

You can do the same on a keyboard. Use your left hand to lightly tap the 1234 keys while actually typing out the characters with your right. Saved me when I had to sit next to some nosy kid once.

[-] burido@lemmy.world 6 points 1 day ago

my pin is 12 digits, I could say it out loud and no one would still be able to get in

[-] victorz@lemmy.world 9 points 1 day ago* (last edited 1 day ago)
[-] Swedneck@discuss.tchncs.de 1 points 46 minutes ago

0118 999 881 999 119 725 3

[-] bhamlin@lemmy.world 10 points 1 day ago* (last edited 1 day ago)
[-] Randelung@lemmy.world 5 points 1 day ago

1 1 1 1 1 1 1 1 1 1 1 2, then?

[-] bhamlin@lemmy.world 5 points 1 day ago

ChatGPT suggest a secure 12 digit password for me, please.

[-] Randelung@lemmy.world 3 points 1 day ago

My bank limits me to 4 digits, saying it "technically fulfills" the card supplier's security standards. I guess fake keypads are a bigger risk than people standing behind you, but still. Then again, 6 digits, which is the maximum, wouldn't change much, either.

[-] hiddenuser420@feddit.dk 15 points 1 day ago

you can hold your other hand over while typing. I know the numbers and dont have to look, thats how I do it.

[-] Swedneck@discuss.tchncs.de 1 points 44 minutes ago

if my debit card is out then it means i had to pull out the wallet, so just holding the wallet over is both convenient and obstructs a bit more

[-] tburkhol@slrpnk.net 10 points 1 day ago

Thermal camera will reveal the buttons your fingers lingered on and in roughly what order as they cool.

That's why I spend a few minutes afterward licking the keypad to lay false heat signatures and promote faster cooling due to saliva. Attackers/observers are temporarily stunned with confusion and disgust, giving me a brief window to escape unnoticed.

Making sure that machine is warmed up for whatever deposit or withdrawal you had in mind?

[-] klankin@piefed.ca 5 points 1 day ago

Also dissolves some of the oils your hand left behind, which any 2 bit criminal with a forensics lab would pick up on in a second

[-] Aqivex@fedinsfw.app 6 points 1 day ago

Easily defended against: Upon finishing your transaction, simply press every single button on the machine in quick succession, with roughly equal firmness.

[-] socsa@piefed.social 3 points 1 day ago

One of the keypad locks I have on my door requires you press two random numbers after your pin, which I always thought was pretty clever. The one my parents have rotates the numbers, which also works but is reallllly not compatible with being drunk.

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[-] melsaskca@lemmy.ca 2 points 1 day ago

That is simple, but very good, advice.

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this post was submitted on 11 Oct 2026
138 points (97.9% liked)

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