It looks like each time you turn round nowadays some jack-wagon has come-up with a fresh method to try & part you from your cash or steal your critical info. Most scammers are regularly posting rouge applications on Facebook, placing malware links in Tweets, and sharing you Phishing mails. Is no virtual domain scare anymore? The reply is no, and now they have shifted message bases phishing on your mobile phone. Smishing is actually a phishing scam which is sent over SMS (Short Message Service) or text messages.
Certainly, I would never fall for that, you say. it seems that somebody is falling for it, as they would not be doing it if it did not work a few of the time.