A computing platform may receive, from a client portal server, a request to authenticate a user to a user account associated with a client portal provided by the client portal server. Based on receiving the request to authenticate, the computing platform may send, to a social messaging server, an authentication token request message. Subsequently, the computing platform may receive, from the social messaging server, an authentication token. Thereafter, the computing platform may validate the authentication token received from the social messaging server. Based on validating the authentication token received from the social messaging server, the computing platform may generate a validation message directing the client portal server to provide the user with access to the user account. Subsequently, the computing platform may send, to the client portal server, the validation message directing the client portal server to provide the user with access to the user account.