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Security and Privacy
How We Work To 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 support you need every step of the way until your case is closed.
Fraud Early Warning
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 support you need every step of the way until your case is closed.
How We Work To Protect Our Site
128-Bit Encryption
Citibank uses Secure Sockets Layer (SSL) for 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.
Firewalls
Our servers are protected by numerous firewalls, which are constantly monitored for security breaches.