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Security Center

Reporting Fraud And Suspicious Activity

  • Contacting BMO Harris

    Contacting BMO Harris

    We are committed to helping protect you from identity theft and fraud. If you suspect that someone has gained access to important personal information, please contact us and we'll help you through the steps you should take to protect your accounts.
    • Visit a BMO Harris office or call us at 1-888-340-2265: we'll close any impacted accounts and place a fraud alert on your records. If you receive a suspicious email, forward it to and contact us immediately at the number above.
    • Contact one of the major credit bureaus: request that a fraud alert be placed on your file and ask for a free copy of your credit report.
    • Order a new copy of your credit report in three months: verify all corrections and review for suspicious activity. A small fee may apply.
    • Contact any other banks or creditors: send a follow-up letter to each.
    • File a police report: retain a copy for your records.
    • File a complaint with the Federal Trade Commission (FTC): call toll-free 1-877-IDTHEFT (438-4338).
    • Complete an Identity Theft Affidavit when disputing any new unauthorized accounts.
  • Reporting Lost or Stolen Cards

    Reporting Lost or Stolen Cards

    Please call the appropriate number below to report a lost or stolen card.

    BMO Harris Bank Debit Cards

    • To report a lost/stolen Harris ATM/Debit Card:
      Call 1-888-340-2265, 24 hours a day.

    BMO Harris Bank Credit Cards

    Specialty Cards

    Diners Club U.S. Cards:

    Call 1-800-2-DINERS (1-800-234-6377)
    Outside the U.S. Call 1-514-877-1577 (collect calls accepted)
  • Credit Reporting Agencies

    Credit Reporting Agencies


    To report fraud, call: 888-766-0008 and write:
    P.O. Box 740241, Atlanta, GA 30374-0241
    To order your credit report, call: 800-685-1111 or write:
    P.O. Box 740241, Atlanta, GA 30374-0241


    To report fraud, call: 800-680-7289 and write:
    Fraud Victim Assistance Division, P.O. Box 6790, Fullerton, CA 92634,
    To order your credit report, call 800-888-4213 or write:
    P.O. Box 1000, Chester PA 19022,


    To report fraud, call: 888-397-3742 and write:
    P.O. Box 2002, Allen TX 75013
    To order your credit report, call: 888-397-3742 or write:
    P.O. Box 2002, Allen TX 75013

    Other information available at:

Banking products and services are subject to bank and credit approval and are provided by BMO Harris Bank N.A. Member FDIC
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