My SSN was exposed in a breach at Columbia—a school I have no connection with

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Data hoarding

Columbia admits last year’s data breach exposed victims beyond its students, staff.

Credit: Aurich Lawson | Getty Images

A weird text from my dad in February sent me on a months-long quest to solve a mystery that has been troubling an odd group of victims from a Columbia University data breach last year. That group? People with absolutely no connection to the school.

The text included a photo of a letter from Columbia, informing me that I was a victim of a data breach last June, one that exposed a wide range of sensitive information, including 1.8 million Social Security numbers.

Columbia’s publicnoticesabout the breach were addressed exclusively to “members of the Columbia community.” In the notices, Columbia warned that an “unauthorized party obtained information about students and applicants related to admissions, enrollment, and financial aid processes, as well as certain personal information associated with some...

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