*966*911# Code That Stops Unauthorized Withdrawals From Your Zenith Bank Account Zenith Bank has introduced a code you can use to stop unauthorized withdrawals if you lose your mobile phone, ATM Card or hardware token. It is *966*911#. See more Related By OzoIgboNdu1 of Igbo Defender I am an Igbo prince. Onye Igbo ka m bu! View all of OzoIgboNdu1 of Igbo Defender's posts.