JPMorgan Chase revealed Thursday that more than 80 million of its accounts were hit in a huge cyber attack last summer.
Roughly 76 million household accounts and seven million business accounts were hit, the company said in a regulatory filing. The hack was first discovered in July, but its severity was not disclosed until Thursday.
Hackers made off with customers' personal information, including names, addresses, and phone numbers. But the company said there was no indication hackers also swiped more sensitive information like passwords and Social Security numbers.