Citibank One-Time PIN (OTP)

The Citibank OTP (One-Time PIN) is a randomly generated six digit password, which makes it a stronger method for authenticating your online transactions. Each time you perform online transactions through Citibank Online you'll be required to enter a Citibank OTP. The Citibank OTP is sent via SMS to your mobile phone. You will only be required to enter one OTP per session.

When you need to perform an online transaction or online query, you will be required to enter an OTP as a second level of authentication to confirm that the transaction is authorised by you. This OTP will be delivered to you via SMS. You will only need one OTP per session. For a full list of transactions click here.

You only need to enter one OTP per online session. Once you have entered your OTP you can perform as many transactions as you like within that session. If you're adding a new payee you'll still need to activate this payee using the Online Authorisation Code (OAC) which will be sent via SMS. The OAC functions separately to the OTP.

The Citibank OTP serves as a second-level of authentication when you perform protected transactions at Citibank Online. If your card number and PIN are compromised for any reason, the intruder will also need to have your mobile phone to access protected transactions via your account online. This is an additional security measure to protect you so you can enjoy total peace of mind when you bank online with us.

No. The security questions will be removed in april 2013 and OTP will become the new way to log into Citibank Online to ensure all customers are using stronger authentication to transact online. You'll be notified when this will occur.

No, this enhanced security feature is free to all customers. If you are travelling overseas contact your network provider as the SMS may incur an additional cost. Alternatively, you can download the One-Time-PIN mobile app before travelling. It allows you to generate an offline OTP for use when banking on Citibank Online. Network coverage or internet connection are not required.

If you don't receive your OTP you can request the OTP to be resent to you through the OTP screen on Citibank Online. If you still don't receive your OTP, check that we have your current mobile phone number or phone us on 15881588 (+66 2 232 2484+66 2 232 2484 if calling from the overseas).

The OTP will be sent to your mobile phone instantly. The receipt of the OTP will depend on your network coverage. Poor network coverage may cause some delays.

The Citibank OTP is valid for eight minutes. If the OTP expires, you will need to generate a new OTP. You can do this through the OTP screen on Citibank Online. Please note that if you enter an OTP incorrectly three times you will be locked out of your session and your online user ID will be locked.

If you enter your OTP incorrectly three times, your online access will be blocked and your online user ID will be locked. If this happens and you receive the One-Time-PIN via SMS you will need to reset your online banking password - have your card number, account number and PIN handy. If the One-Time-PIN is generated from the mobile app, call us on 15881588 (+66 2 232 2484+66 2 232 2484 if calling from the overseas) to unlock.

Yes, the Citibank OTP can be sent to all international mobile numbers that have the ability to receive an SMS. If you experience any issues receiving the OTP to your international mobile number please contact us on +66 2 232 2484+66 2 232 2484.

Make sure you update your overseas mobile phone number on Citibank Online and include the country code (without the + sign) and your mobile number. You can start to generate OTP using this number within three working days.

Note: Customers using a US SIM and mobile number may experience some delays in receiving the SMS OTP. Please contact Citiphone on +66 2 232 2484+66 2 232 2484 if you experience any issues.

Yes, you'll need to activate international roaming on your mobile phone before you travel overseas. If you have an iPhone or Android smartphone you will also be able to use the OTP feature in the Citibank Mobile App where you can generate an offline OTP for use when banking on Citibank Online. This feature is free to use internationally as no network coverage or internet connection is required to generate an offline OTP.

No, an OTP will not get forwarded. This would compromise your online security.

You can start to receive the Citibank OTP within three working days of you having successfully updated your mobile number.

No, you can only register one mobile phone number and the Citibank OTP will always be sent to the mobile phone number you have provided us with.

A One-Time PIN (OTP) is a six digit pin you will need to enter when transacting in Citibank Online. An OTP will be sent instantly via SMS or can be generated through the Citibank Mobile app. A OTP expires after 8 minutes. You are only required to enter one OTP per session.

An Online Authorisation Code (OAC) is a code you need to obtain and enter, to set up and activate a new Payee for the first time in Citibank Online. This code is totally separate from an OTP and is sent to you via SMS, or can be obtained through Citiphone. An OAC expires only after 15 days.

Mobile OTP is a new feature in an upcoming release of the Citi Mobile Application which locks your account to your mobile device and allows you to generate an OTP for use online. One-Time-PIN is an alternative to the OTP sent via SMS.

The Citi Mobile Application can be downloaded from either the App Store (iPhone) or the Google Play store (Android). Simply search for 'Citibank TH' and the Citibank mobile app will display and be available for download.

This is not currently available for Blackberry users.

No. Once you have downloaded and registered for One-Time-PIN, you can generate an offline OTP without the need for an active internet connection or mobile reception.

• Login to the Citi Mobile Application using your User ID and Password (the same details you use to login to Citibank Online).
• Select the 'Register for One-Time PIN' from the home screen menu.
• Before continuing, you will need to enter an OTP which will be sent to your device by SMS.
• Enter the OTP you receive then read and accept the Terms and Conditions (if you agree) by selecting the 'I accept' option.
• You will now be registered for Mobile OTP.

To generate an OTP through the Citi Mobile Application, simply select the 'Generate OTP' option from the home screen menu.

OTPs generated through One-Time-PIN are valid for eight minutes. If your OTP expires, you will need to generate a new OTP.

Yes. If you would prefer to generate an OTP through the One-Time-PIN mobile app feature rather than receive an OTP via SMS, you can generate an offline OTP through the Citi Mobile Application, and enter that OTP when transacting in Citibank Online on your computer. Simply select the 'Generate One-Time PIN' option from the home screen of the mobile app.

When transacting in Citibank Online, customers can opt to receive an OTP by SMS. If they don't have a mobile phone or a smartphone, or travel regularly to countries with limited coverage, a Hardware Token can be offered in these circumstances.

Banking through mobile phone's browser works exactly the same as if you were banking online on your PC.

You will be sent as OTP via SMS to enter when accessing protected functions, or if you are registered for One-Time-PIN, you will have the option to enter an OTP generated via the app.

No. Your account is locked to your device rather than your phone number. You can continue to bank online as you normally would however you will need to log in to Citibank Online and update your mobile number

The same applies if you are travelling overseas and use a local SIM card while in a particular country.

If you have lost your mobile phone and it's registered to One-Time-PIN, please call CitiPhone on 15881588 (+66 2 232 2484+66 2 232 2484 if calling from the overseas) to unregister your phone from One-Time-PIN. You will need to re-register to One-Time-PIN function once you have a new phone and advise us of your new phone number should there be change.

A Hardware Token is a key ring sized plastic token which can be used to generate a One-Time PIN (OTP). The token includes a small keypad, OTP button and a screen which will display the six digit OTP.

Customer can request the Hardware Token by following:

• Contact Citibank branch Interchange21 (Asoke Intersection), Silom or Central World.
• Fill in the Hardware Token request form.
• After received Hardware Token, you have to register the token through Citibank Online.

To generate an OTP using the Hardware Token, simply press the OTP button in the bottom right corner of the token.

An OTP will display in the screen which you can then enter into the field provided in Citibank Online.

• Login to Citibank online (www.citibank.co.th)
• Select Services and choose "My profile" from the top menu
• Under "My Profile", Select "Hardware Token Registration"
• Input following information
  • Date of birth (DD/MM/YYYY)
  • Hardware Token serial number
  • One - Time Password (Press the green button at the bottom right of the Token)
• Select Continue

If you lose your Hardware Token, please report it to CitiPhone immediately on 15881588 (+66 2 232 2484+66 2 232 2484 if calling from the overseas). As your Hardware Token is linked only to your account, the lost token will be cancelled and a new token issued.

No. Hardware Tokens work totally independent of any network or internet connection and an OTP can be generated at any time.

No. Each Hardware Token is assigned to only one account. Please ensure your token is kept in a secure place and is not shared with anyone else.

No. The damaged Hardware Token will be remotely cancelled by CitiPhone.

No. A customer will only be issued one Hardware Token to allow them to bank online.

Please ensure your token is kept in a secure place and is not shared with anyone else. Avoid storing your token with other sensitive information such as account details, PIN numbers or Internet Banking Passwords.