Abstract: An audio file authentication system configured to extract a plurality of audio features for a plurality of raw audio files containing a digital recording of a specific user's voice, provide an authenticated audio file that includes a digital recording the specific user's voice based on the authentication information for the specific user, generate a parent hash key and sequential child hash keys that are unique to the authenticated audio file, and generate a processed audio file in which the parent hash key and each of the sequential child hash keys is inserted sequentially as data within the audio gaps of the audio file.

Abstract: The disclosure describes systems and techniques for assessing risk of an open Wi-Fi network, at a consumer's request, before the consumer performs a transaction. The system receives a Wi-Fi network risk assessment request associated with a Wi-Fi network connection of a mobile device. Upon receiving the request, the system retrieves connection-related data from the mobile device. The connection-related data is associated with the Wi-Fi network connection. The system performs a Wi-Fi risk assessment of the Wi-Fi network connection. The system transmits a result of the risk assessment to the mobile device for presentation on the mobile device. The system also transmits the result of the risk assessment to an issuer server. The issuer server is associated with a payment account of the consumer. Moreover, the system transmits a step-up authentication alert to the issuer server.

Abstract: A head restraint for a seat back of a vehicle seat may have two lateral wings. A topmost surface of the wings may flare from top to bottom in a driving position.