The online-payment platform Zelle is extremely popular with consumers, which helps explain why it’s also become a hit with scammers. Another reason: Zelle payments can’t be reversed once they’re sent. They’re a nearly instantaneous transfer of cash from your account to someone else’s, and if that someone else is a scammer, you can’t simply stop the payment (like a check) or dispute it (like a credit card).Now, the federal regulator overseeing financial products is probing whether banks that offer Zelle to their account holders are doing enough to protect them against scams. Two major banks — JPMorgan Chase and Wells Fargo — disclosed in their security filings in the last week that they’d been contacted by the Consumer Financial Protection Bureau. Advertisement According to the Wall Street Journal, which reported the filings Wednesday, the CFPB is exploring whether banks are moving quickly enough to shut down scammers’ accounts and whether they’re doing enough to identify and prevent sc...