Reports: FBI probes JPMorgan hack

NEW YORK (AP) — The FBI is investigating a hacking attack on JPMorgan Chase and at least one other bank, according to reports citing unnamed sources familiar with the matter.

A report on Bloomberg.com says the FBI is investigating an incident in which Russian hackers may have retaliated against U.S. government-sponsored sanctions against the country. The attack, Bloomberg says, led to the loss of sensitive data. Bloomberg cited security experts saying that the attack appeared "far beyond the capability of ordinary criminal hackers."

In a statement, JPMorgan spokeswoman Trish Wexler said companies "of our size unfortunately experience cyber attacks nearly every day. We have multiple, layers of defense to counteract any threats and constantly monitor fraud levels." Wexler did not confirm the reports.

The FBI did not immediately respond to messages for comment.