What to do in the aftermath of the JPMorgan breach

"Any email that's perceived to be from Chase, they'll probably act upon it, because people are nervous. People are scared," Tom Gorup, security operations manager for Rook Consulting, said.

Not all the scams will happen online. People could receive a letter in the mail that looks like it's coming from Chase and asking the recipient to call an 800 number. Dialing the number could reach a person practiced in fooling people into disclosing sensitive information.

Crooks pretending to be from Chase could also call people affected by the breach early in the morning, when most people are still a bit groggy and more likely to provide personal information.

"Those types of attacks do work," Gorup said.

Some small businesses can be as gullible as consumers and therefore susceptible to the same types of scams. PhishingPhishing campaigns can be particularly effective, if targeted at specific individuals. Alles zu Phishing auf CIO.de