JPMorgan bank could be hackers' latest victim

While hackers have been targeting retail stores over the past few months, it appears they haven't given up on banks.

The FBI is investigating a data breach into JPMorgan and possibly several other banks, according to The Wall Street Journal. JPMorgan is the largest bank in the US and the sixth largest in the world, according to Forbes.

While information on the timing and reach of the hack is scant, sources familiar with the probe told the Journal that the investigation began earlier this month. It's believed the breach may have been caused by hackers injecting malware into a JPMorgan employee's personal computer. It's possible that between two and five US banks have been affected.