No one is too big to get hacked — and that includes JPMorgan Chase and at least four other banks that were hit by hackers earlier this month. The FBI is investigating the blitzes, which seem to be sophisticated, coordinated cyberattacks that grabbed gigagbytes of data.

According to sources cited by the New York Times, hackers grabbed information including checking and savings account information, but no one is quite clear on why the hackers went after the banks or what they’ll do with the information.

The FBI and several security firms are reportedly trying to figure out whether the attacks were aimed at trying to reap financial reward or gather intelligence in an effort to spy on Western banks.

Thus far, there are no numbers on how many, if any customers have been or will be affected, but one source says JPMorgan hasn’t seen fraud levels shoot up.

“Companies of our size unfortunately experience cyberattacks nearly every day,” said a JPMorgan spokeswoman. “We have multiple layers of defense to counteract any threats and constantly monitor fraud levels.”

An FBI spokesman added that the agency is coordinating with the Secret Service as well.

“Combating cyberthreats and criminals remains a top priority for the United States government,” he said.

So now we just wait and see — and as always, keep an eye on your bank accounts, safeguard your passwords and monitor all your information for fraud.

JPMorgan and Other Banks Struck by Hackers [New York Times]

Want more consumer news? Visit our parent organization, Consumer Reports, for the latest on scams, recalls, and other consumer issues.