Methods, systems, and computer program products for determining an originator of a network packet using biometric information are disclosed. A network packet is received from a network device. A header or a trailer of the network packet is analyzed to determine whether the header or trailer includes an identifier of biometric identification information of a network user. The network packet is identified as having originated from the network user if the header or trailer includes the identifier of biometric identification information of the network user. Identifying the network packet as having originated from the network user does not require reading a payload of the packet.