I have an ATM card with a randomly assigned six-digit number. Pretty easy to remember because it’s basically MMDDYY format.
Everyone knows. Nobody cares.
My PI number is 3.1415926535.
Me exactly - with the forwards and backwards bit too. My address and phone number and phone numbers of friends from 40+ years ago.
Ok, fight my ignorance. Why is it clever?
It doesn’t start with any birthday month.
Yes, I always use 4d10 to generate new PINs when required.
Don’t get it either. 8086 would be memorable as a classic microprocessor (but thus also a well-known number to try). But 8068?
Oh. I get it now, it was an NBC news article.
i chose 3 numbers specifically because they were my old discriminator tags on discord.
they’re just special to me.
That’s why I just use the last four digits of π. 
In reality, I use different mnemonics for different PINs.
It was a plot point in Trainspotting 2 - find a group for whom a particular year is exceptionally meaningful, steal as many of their bank cards as you can, and get inputting. I’m not aware of such a thing happening in real life, of course. But then why would I?
IMHO, a PIN, typically 4 numbers is different than a PWD. Seems we are talking about a little of both.
For one of my PIN’s, that my bank assigned, I just figured out that 2 of the numbers where a special date and subtract 1. Same with the next two numbers.
For PWD’s for work that are long and need the full complex of Upper, lower, numbers and special char. Has to be 14 in length. I look inward to a song I like. And a line in that song. I use the first letter of each word in the line. Very easy for me to remember. Insert some numbers and chars, and Bob’s your uncle.
This precisely.
Sadly, this seems to be standard usage.
Why “sadly”? Redundancy is a feature of human language. “Number” is clarifying in this case, as “pin” on its own has another meaning. Yes, there’s always context to help, but this makes it absolutely clear. I mean, we say “HIV virus” without most people batting an eye. When one uses an acronym or initialism, it is parsed as a single unit lexically, not as its individual parts. It’s completely natural, in my opinion, to say phrases like “ATM machine” and “VIN number” because our brains don’t say “automatic teller machine machine” when they parse the sentence.
My PINs, including phone/ipad log-in numbers, are all older PINs, including door codes. Occasionally, I’ll swap digits.
Yep, for my BankOne account in 1983, I followed the same logic. It also helped that it
spelled a word. Once I memozied it I just kept on using it to this day. The only time it got complicated was when I went to Europe and the ATM keyboards were labeled in a different order.
Oops, just realized this was a zombie thread. Oh well
I could’ve written this.
I use words. I don’t even know what the numbers are.