Migrate users from cognito user pool to custom authenticator

There is no current way to export hashed passwords for users from Cognito.

Your users would need to reset passwords when they login to the new authenticator.

This is also the case when failing over/migrating Cognito User Pools to a different region. See our Cognito User Profiles Export Reference Architecture[1] for more details on limitations

[1] https://docs.aws.amazon.com/solutions/latest/cognito-user-profiles-export-reference-architecture/solution-components.html#limitations