# SessionVerification An interface that represents the state of the session verification process. ## Properties | Name | Type | Description | | ------------------------ | --------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | status | 'needs\_first\_factor' | 'needs\_second\_factor' | 'complete' | The current state of the session verification. | | level | 'first\_factor' | 'second\_factor' | 'multi\_factor' | The requested level of the session verification. | | session | Session | The Session object that the session verification is attached to. | | firstFactorVerification | VerificationResource | The state of the verification process for the selected first factorFirst factor is the first factor of authentication that is required to complete the authentication process. For example, when a user signs in with email and password, the password is the first factor. First factor verification is the process of verifying a user's identity using a single factor. This can be compared to second factor verificationSecond factor verification, also known as two-factor authentication (2FA) or multi-factor authentication (MFA), is the process of verifying a user's identity using an additional factor. For example, if a user signs in with their email and password, and then, is asked to also provide an OTPA one-time password (OTP) is a code that is used to authenticate a user. The OTP is typically sent to a user's email address or phone number and must be entered within a certain time period to be valid. sent to their phone number, the OTP is the second factorA second factor is an additional factor of authentication that is required to complete the authentication process. For example, if a user signs in with their email and password, and then is asked to also provide an OTPA one-time password (OTP) is a code that is used to authenticate a user. The OTP is typically sent to a user's email address or phone number and must be entered within a certain time period to be valid. sent to their email in order to verify their identity, the email OTP is the second factor.., also known as two-factor authentication (2FA) or multi-factor authentication (MFA), where the user needs to provide an additional factor to verify their identity.. Initially, this property contains an empty Verification object, since there is no first factor selected. You need to call the prepareFirstFactorVerification() method in order to start the verification process. | | secondFactorVerification | VerificationResource | The state of the verification process for the selected second factorSecond factor verification, also known as two-factor authentication (2FA) or multi-factor authentication (MFA), is the process of verifying a user's identity using an additional factor. For example, if a user signs in with their email and password, and then, is asked to also provide an OTPA one-time password (OTP) is a code that is used to authenticate a user. The OTP is typically sent to a user's email address or phone number and must be entered within a certain time period to be valid. sent to their phone number, the OTP is the second factorA second factor is an additional factor of authentication that is required to complete the authentication process. For example, if a user signs in with their email and password, and then is asked to also provide an OTPA one-time password (OTP) is a code that is used to authenticate a user. The OTP is typically sent to a user's email address or phone number and must be entered within a certain time period to be valid. sent to their email in order to verify their identity, the email OTP is the second factor... Initially, this property contains an empty Verification object, since there is no second factor selected. For the phone\_code strategy, you need to call the prepareSecondFactorVerification() method in order to start the verification process. For the totp or backup\_code strategies, you can directly attempt the verification by calling the attemptSecondFactorVerification() method. | | supportedFirstFactors | EmailCodeFactor[] | PhoneCodeFactor[] | PasswordFactor[] | Array of the first factorsFirst factor is the first factor of authentication that is required to complete the authentication process. For example, when a user signs in with email and password, the password is the first factor. First factor verification is the process of verifying a user's identity using a single factor. This can be compared to second factor verificationSecond factor verification, also known as two-factor authentication (2FA) or multi-factor authentication (MFA), is the process of verifying a user's identity using an additional factor. For example, if a user signs in with their email and password, and then, is asked to also provide an OTPA one-time password (OTP) is a code that is used to authenticate a user. The OTP is typically sent to a user's email address or phone number and must be entered within a certain time period to be valid. sent to their phone number, the OTP is the second factorA second factor is an additional factor of authentication that is required to complete the authentication process. For example, if a user signs in with their email and password, and then is asked to also provide an OTPA one-time password (OTP) is a code that is used to authenticate a user. The OTP is typically sent to a user's email address or phone number and must be entered within a certain time period to be valid. sent to their email in order to verify their identity, the email OTP is the second factor.., also known as two-factor authentication (2FA) or multi-factor authentication (MFA), where the user needs to provide an additional factor to verify their identity. that are supported in the current session verification. Each factor contains information about the verification strategy that can be used. | | supportedSecondFactors | TOTPFactor[] | PhoneCodeFactor[] | BackupCodeFactor[] | Array of the second factorsSecond factor verification, also known as two-factor authentication (2FA) or multi-factor authentication (MFA), is the process of verifying a user's identity using an additional factor. For example, if a user signs in with their email and password, and then, is asked to also provide an OTPA one-time password (OTP) is a code that is used to authenticate a user. The OTP is typically sent to a user's email address or phone number and must be entered within a certain time period to be valid. sent to their phone number, the OTP is the second factorA second factor is an additional factor of authentication that is required to complete the authentication process. For example, if a user signs in with their email and password, and then is asked to also provide an OTPA one-time password (OTP) is a code that is used to authenticate a user. The OTP is typically sent to a user's email address or phone number and must be entered within a certain time period to be valid. sent to their email in order to verify their identity, the email OTP is the second factor.. that are supported in the current session verification. Each factor contains information about the verification strategy that can be used. | --- ## Sitemap [Overview of all docs pages](https://clerk.com/docs/llms.txt)