Online Threat Alerts (OTA) - Alerting you to scams and frauds.

Fifth Third Fraud Department and other Contacts
Fifth Third Fraud Department and other Contacts

To contact the Fifth Third Bank fraud department, you can call their main fraud reporting line at 1-800-972-3030 or their direct transaction dispute and fraud resolution line at 1-877-833-6197.

An overview of specialized contact numbers and operational hours across Fifth Third Bank departments is detailed below:

Fraud & Security Contacts

  • Main Fraud Support & Account Takeovers:1-800-972-3030
    • Hours: Monday–Friday, 8 a.m.–6 p.m.; Saturday, 10 a.m.–4 p.m. ET.
  • Disputes Resolution Department:1-877-833-6197
    • Purpose: To report unauthorized card activity, fraudulent pending transactions, or altered checks.
    • Hours: Monday–Friday, 8 a.m.–8 p.m.; Saturday, 8 a.m.–5 p.m. ET.
  • Debit Card Fraud Text Verification:1-866-442-0251
    • Purpose: If you receive a suspicious activity text message from short-codes 33748 or 535353, call this number to verify.
  • Lost or Stolen Cards (24/7):1-800-782-0279 or 1-800-972-3030.
  • Identity Theft Protection Specialists:1-866-431-3472 (For Fifth Third Identity Alert subscribers).
  • Phishing Email Reporting: Forward suspicious emails pretending to be the bank to 53investigation@security.53.com.

Other Core Customer Support Contacts

For standard banking inquiries, you can use these dedicated client lines:

DepartmentPhone NumberAvailability
General Customer Service1-800-972-3030Mon–Fri 8am–8pm, Sat 8am–5pm ET
Business Banking Support1-877-534-2264Mon–Fri 7am–8pm, Sat 8:30am–5pm ET
Commercial Customer Support1-866-475-0729Mon–Fri 7am–10pm ET
Card Activation1-800-621-255424/7 Automated System
Existing Mortgages1-800-375-1745Standard Business Hours
Mortgage Hardship Assistance1-800-457-0839Standard Business Hours
International Inquiries1-513-579-535324/7 Support
Military Banking1-877-899-0815Standard Business Hours

Digital Management Options

If you are logged into your accounts, you can manage many of these situations immediately without making a call:

  • In the App: Open the Fifth Third Mobile App, navigate to your SmartShield® Security Dashboard, and use the "Fraud Center" to lock your card instantly or tap "Report Phishing".
  • Live Chat: Log into online banking at 53.com and use the chat bubble icon to text with the 24/7 virtual assistant or connect to a representative.
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