On a job application site for my local government it reveals if a specific social security has been used or not on that site. The site is very outdated.
this post was submitted on 07 Dec 2025
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Here is a reminder for all US citizens.
Your social security number is simply a serial number with zero checksums or any logic built in.
If you want another valid social security number you can simply pick a number before or after your own.
The social security number was never designed to be a general ID number, and should not be used as such.
If you’d like this information told more wittily, watch CGPGrey’s video “Your Social Security Card is Insecure” (7:49).