Call 1-800-363-9992 if you are using a BMO Debit Card.
Call 1-800-263-2263 if you are using a BMO MasterCard.
If you suspect any suspicious activity, please contact us immediately:
In Canada, email us at online.fraud@bmo.com.
In the U.S., email us at bmoharris.phish@bmo.com or call 1-888-340-2265.
Note : Please do not include confidential or financial details.
Online Banking for Business has a number of tools available to support you.