# Validation Type

ARKSSPR allows users to choose the default 2FA method for password reset and account unlocking. The user can choose the 2FA method, which is SMS by default.

<figure><img src="https://60632999-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MgdlemWm0JI6_ILmafb%2Fuploads%2F9x6GorlqFG6yb9NNfIKl%2Fimage.png?alt=media&#x26;token=5a332768-7656-4f01-a05a-98ed241565ad" alt=""><figcaption><p>Validation Type</p></figcaption></figure>

ARKSSPR allows users to choose the default 2FA method for password reset and account unlocking. The user can choose the 2FA method, which is SMS by default.

### **SMS**

[Short Message Service](https://docs.arksspr.com/master/administration/settings/general-settings/sms-settings) is used for 2FA. The user can select the country where the phone number is located from the list. Default is Türkiye.

### E-Mail

Secondary E-Mail is used for 2FA. In order to use this, he/she must define a [secondary e-mail address](https://docs.arksspr.com/master/administration/my-account/secondary-e-mail). [E-Mail settings ](https://docs.arksspr.com/master/administration/settings/general-settings/e-mail-settings)are required.

### Authenticator

Authenticator application is used for 2FA. In order to use this, the mobile authenticator application must be defined on the [Authenticator Definition](https://docs.arksspr.com/master/administration/my-account/authenticator-definition) screen.