Real-time, two-way fraud text alerts protect your Alliant debit and credit cards! When your mobile number is opted in to receive text messages, you can shop with confidence knowing that Alliant’s two-way fraud text alerts will send you a text alert when we detect a suspicious purchase with your Alliant Visa debit or credit card. You can then approve or decline the transaction so we can better protect you against card fraud. What should I do when I receive a text message about fraud on my Alliant Visa card? My Alliant Visa credit or debit card was declined, then I got a text. Is it legit? Will my card be locked if I don’t respond to a fraud text alert? How can I unlock my Alliant Visa debit card? How can I unlock my Alliant Visa credit card? How can I opt in to two-way card fraud text alerts? How can I opt out of two-way card fraud text alerts? How can I check my two-way card fraud text alert opt-in status? How can I add or change my mobile phone number in my Alliant profile?