If you’re in UK chances are that you have been affected by the TSB disaster. If so, you may want to be aware of scammers and phishing that already in the hunt of fools.
Please, check this article:
http://www.wired.co.uk/article/phishing-texts-and-emails-surge-in-the-wake-of-tsb-outage
Also, remember that mobile banking is insecure no matter what companies say. More often than not, they get cracked and bugged, so please, if you value your privacy and security, don’t use them. And always, in case of doubt leave the call, email or whatever on hold and contact the bank directly. Financial entities are always happy to help.
All in all, that means money to them.