You dig into how the dates are being populated to discover that the COBOL section in question uses dates starting in 1875 according to the ISO 8601 standard. It’s an old one but it is a standard used when this system was set up. So likely, these 150-year-olds are zero’d out for one reason or another and show up as 150 years old. That also sounds suspicious. But the year count at least makes sense.
Before you get a chance to look further, Elon pops into your office.
“Hey, saw on the key logger that you found something interesting. That’s going to be a really fun time telling everyone that this old antiquated system has been paying out money to 150-year-olds. Thank goodness we’re here to save everyone from this obvious fraud.”
How do you explain the error to Elon?
Maybe look into it? I don’t think it’s fraud, but maybe it is?