A method including determining, by a transmitting device in communication with a receiving device, encrypted decoy messages based at least in part on encrypting decoy data utilizing an encryption key; determining, by the transmitting device, one or more encrypted content messages based at least in part on encrypting content data utilizing a cryptographic key, different from the encryption key; and transmitting, by the transmitting device to the receiving device, the one or more encrypted content messages among the encrypted decoy messages. Various other aspects are contemplated.