Bad guys are increasingly targeting you through your smartphone. They send texts that trick you into doing something against your own best interest. At the moment, there is a mystery shopping scam going on, starting out with a text invitation, asking you to send an email for more info which then gets you roped into the scam.
Always, when you get a text, remember to "Think Before You Tap", because more and more, texts are used for identity theft, bank account take-overs and to pressure you into giving out personal or company confidential information. Here is a short video made by USA Today with some information about "Smishing":