I received the same message yesterday 9/11/11. I thought it was strange because credit unions wont contact you this way. As a matter of fact, no banks would without them identifying themselves by the company name. They also would have you call a local area code for assistance and send the information via local area code. Please be careful and tell everyone you know watch out for this. Also, report it to your mobile phone service to block any recurrences to you phone.
I am with Management at a Credit Union Service Organization, serving hundreds of CU clients.
This is a confirmed SMiShing (ID theft attempt by text). DO NOT REPLY OR CALL - Call your credit union at their NORMAL number to confirm. Don't be duped!