How We Protect Your Account
Citibank protects your account and personal information with 128-bit encryption, the highest level of security generally available online today.
Internet Security Specialists
If you have questions about online shopping, fraudulent email, suspicious sites or other web-related concerns, contact Customer Service.
Citi® Identity Theft Solutions
If you suspect that fraudulent charges have been placed on your credit card, or someone has used your personal information to commit theft, call 1-800-950-5114. An Identity Theft Specialist will provide you with the free support you need every step of the way until your case is closed.
Fraud Early Warning
If Citibank notices any unusual activity on your account, we’ll contact you to verify the charges and get your approval before allowing any additional activity. If you believe that a Fraud Early Warning has been placed on your account, please call customer service at 1-800-344-4355 for the ExxonMobil™ Smart Card and 1-800-903-9966 for the ExxonMobil Business Card.
$0 Liability on unauthorized purchases for the ExxonMobil Smart Card.
You won't be held responsible for unauthorized charges to your account. Not applicable for the ExxonMobil Business Card.
How We Protect Our Site
Citibank uses Secure Sockets Layer (SSL) for secure transmissions. SSL applies encryption between two communicating applications, such as your PC and our corporate Internet server. When your data is transmitted via the Internet, it is encrypted or "scrambled" at the sending end and then decrypted or "unscrambled" at the receiving end. We use 128-bit encryption, the highest level generally available today. Check your browser to be sure it has the added security of 128-bit encryption.
Our servers are protected by numerous firewalls, which are constantly monitored to help prevent security breaches.