• Hildegard (she/her)@lemmy.blahaj.zone
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    2 days ago

    The numbers aren’t random. They are sequential. The early digits are assigned geographically, but the rest are in sequence. If you know a valid social security number, adding or subtracting 1 will be another valid social security number, most likely someone born in the same hospital on the same day.

    They did change it somewhat recently, but they don’t re-assign the numbers when making that change, so most of the numbers are completely insecure.