1. A computer-implemented method, comprising: receiving a request for a verification phrase for verifying an identity of a user; in response to receiving the request for the verification phrase for verifying the identity of the user, identifying subwords to be included in the verification phrase; in response to identifying the subwords to be included in the verification phrase, obtaining a candidate phrase that includes at least some of the identified subwords as the verification phrase; and providing the verification phrase as a response to the request for the verification phrase for verifying the identity of the user.