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  Security Tips

1. Install the latest security patches and software updates on your mobile phone/mobile device. Do not download program/apps from unsecured sources.
2. Read permission requests carefully when an app is installed. Stop the installation if they seem unusual or unnecessary to you.
3. Don’t root or jailbreak your device.
4. Use only known, trusted Wi-Fi networks.
5. Set up a password for your mobile phone. This will help you prevent unauthorized use of your mobile phone and access to your personal information in case it is lost or stolen.
6. Remove temporary files and the cache stored in the memory of your mobile phone regularly since they may contain sensitive information such as your account number.
7. Clear browsing history regularly.
8. Do not leave your mobile phone unattended.
9. Do not keep sensitive information such as your account numbers, PIN and logon passwords in your mobile phone.
10. If you have enabled Citi Mobile® Token but your phone is lost or stolen, you are strongly recommended to

  • Disable Citi Mobile® Token
    1. Sign on Citibank Online
    2. Go to Services > My Profile > Disable Citi Mobile® Token
  • And change your Citibank Online password immediately.
11. If you are opening or downloading your e-statement through a mobile,

  • Please do not open or download your e-statement through a shared mobile.
  • Recommend to save your e-statement PDF in the preferred location in your mobile. If you are uncertain about the security level of your mobile, you are also recommended to remove the saved e-statement after viewing it.
  • Please ensure proper log off after you have finished viewing e-statement and using Citi® Mobile. As such your personal data and financial information can be safeguarded.
12. When opening your banking account online using facial recognition technology, please ensure the environment is safe and private for capturing HKID images and selfie photos before proceeding.

To learn more about security tips, please visit

Our goal is to maintain your trust and confidence when handling personal information about you.

As a Citi customer, you have the opportunity to make choices. As you consider this, we encourage you to make choices that enable us to provide you with quality products and services that help you meet your financial needs and objectives.

The security of personal information about you is our priority. We protect this information by maintaining physical, electronic and procedural safeguards that meet the applicable laws. We train our employees in the proper handling of personal information. When we use other companies to provide services for us, we require them to protect the confidentiality of personal information they receive.

In order to ensure your secure access to our website and/or mobile application as well as for fraud prevention purpose, we will use cookies, web logs (information about how you use our website and/or mobile application) and remote scanning technologies to obtain information, to improve security of our service and to detect malware, threats and vulnerabilities that may affect security of our service. You acknowledge and agree that we may collect, transmit, store, and use technical, location, and other non-personally identifiable data and information, including but not limited to technical information about your computer and/or device such as IP address and/or device ID, system and application software, and peripherals, and information regarding your location for such purposes. We may restrict your access to our website and/or mobile application if such remote scanning detects any signs of suspicious online transactions/activities, potential malware, other online threats or system vulnerabilities. You will be held responsible for using a computer or device that shows signs of potential malware infection and affects the security of our service.

If you would like to know more, you can go to our website at
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