Smart phones can be used for all kinds of things these days. Ok, we get it and increasingly more people are using their phones as a mobile wallet. You can pay for parking, donate to a worthy cause or split a bill with a friend. Most mobile transactions work just fine, but with technology constantly evolving, the rules that should protect you simply haven't caught up. And government oversight isn't clear. Meet Miles. Miles is busy and likes to pay for things with his phone. Yesterday, using his bank's mobile app, he deposited a birthday check from his grandma. Happy Birthday, Miles! Normally when Miles deposits a check at his bank, the funds are available the next business day. But since his mobile deposit isn't regulated the same way, Miles's money may not be available for several days. Today, Miles is hanging out with his friend, Pearl. Pearl stops to fill up her car with gas. Miles offers to pitch in using a mobile app. He thinks his birthday money has already cleared. Miles doesn't know it yet, but his bank won't post Grandma's check for a few more days, so he actually only has $10 That gas just cost an extra $35 in overdraft fees. Yikes! Miles, did you give the bank permission to overdraw your account for a fee? Like a lot of people, Miles doesn't remember. And banks may not have to ask permission to overdraw your account for mobile transfers like they're required to with debit card and ATM transactions.