JPMorgan says attempts by hackers are on the rise and it's spending $15 billion partly to defend against cybercrime

• JPMorgan has seen hackers' attempts on the firm ramp up this year, an exec said Wednesday.
• Mary Callahan Erdoes, who leads JPMorgan's asset and wealth management unit, said hackers are getting smarter. 
• The firm spends $15 billion a year and employs 62,000 people, in part to defend against hacks. 

Hackers are getting smarter and increasingly keen on infiltrating JPMorgan, according to Mary Callahan Erdoes, the bank's asset and wealth management chief.