MasterCard Security

Suspected Fraud Emergency Help

You’re prepared to make the most of your trip – we’re prepared if you lose your card.

What To Do:
Call your issuing bank immediately. Your issuer may want to cancel your current card and issue you a new one. Be sure to verify that your mailing address has not been changed.

MasterCard Issuer Security Phone Numbers:
ATB Financial: 1-800-661-2266
BMO Bank of Montreal: 1-800-361-3361
Canadian Tire Bank: 1-800-459-6415
Capital One Canada: 1-800-481-3239
Citibank Canada: 1-800-305-7259
Credit Union Electronic Transaction Services: 1-800-567-8111
First Data Loan Company: 1-800-265-1228
GE Money Canada: 1-800-243-2222
HSBC Bank Canada: 1-866-406-4722
MBNA Canada: 1-800-379-2744
National Bank of Canada: 1-888-622-2783
President’s Choice Bank: 1-866-246-7262
Sears Canada: 1-800-288-9965
Wells Fargo Financial: 1-888-295-0050
Wells Fargo BusinessCreditSM: 1-888-215-9102

If you suspect a compromise of your PERSONAL INFORMATION: Help for Special Situations:
If you’re still in possession of your card but fraudulent purchases have been made on the account, call your issuer to report the fraud and request a new card.

In the event of a fraud application being made in your name or if you are a victim of an account takeover, contact the credit bureaus to let them know you’re a victim. A "Fraud Alert" message will be placed on your file. You should also request a copy of your credit bureau report and you should review it carefully for any information that may be incorrect. Contact the credit bureaus at:

Equifax: 1-800-465-7166
TransUnion: 1-800-663-9980


Continue to check your statements in the following months to ensure the problem is completely resolved.

Report the fraud activity to the proper authorities. Your issuer will advise you if they require that you make a police report. If your Social Insurance Number was compromised, you should report the incident to Human Resources Development Canada at 1–800–206–7218.
If you’re a victim of an Account Takeover or Fraud Application, or if you’ve been defrauded due to phone solicitation, report the incident to Phonebusters at 1–888–495–8501. Phonebusters is a central agency that collects information on telemarketing complaints and victims of fraud applications throughout Canada and disseminates this information to the appropriate enforcement agency.

Feel Reassured: Learn About MasterCard’s Zero Liability.

Suspected Fraud Emergency Service
MasterCard® Global Service™ Telephone Number Directory

Emergency services in Canada
call 1–800–MC–ASSIST (1-800-62-27747)
TDD/TYY for the hearing impaired
call 1–636–722–3725

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