2009 — Citigroup: Citigroup (NYSE:C) recently issued replacement…
Data compromised
Personal information
Technical writeup
Citigroup (NYSE:C) recently
issued replacement cards to consumers and told them that their account
numbers may have been compromised. Citigroup told credit-card customers
in Massachusetts that their account numbers may have been illegally
obtained as a result of a merchant database compromise and could be
at risk for unauthorized use. Bank officials are not certain
if this is a new breach or a previously disclosed one.
Root cause
CARD