Abstract: Methods, devices, and machine-readable and executable instructions are provided for normalizing network traffic using a network controller. An example method for normalizing network traffic using a network controller can include receiving network traffic, including a plurality of data units, at a network controller, and normalizing the network traffic based on a rule using the network controller.

Abstract: Sampling network traffic includes: loading a packet sampling module into a processor-based network device coupled to a network; determining with the packet sampling module if a network packet addressed to or from the network device is selected for sampling; and transmitting data from the network packet over the network to a monitoring device external to the network device if the network packet is selected for sampling.

Abstract: Embodiments disclosed herein relate to identifying potential account numbers in a single pass of a list of digits. A processor 104 may determine in a single pass of a list of digits each consecutive sequence of digits of a selected length satisfying a Luhn check. The processor 104 may provide the determined sequences of digits as potential account numbers.

Abstract: Methods and systems for detecting suspected data leakage in a network that includes a plurality of networked devices is described herein. A packet is received from a networked device of the plurality of networked devices. It is determined that the packet includes sampled traffic data. The sampled traffic data includes a sample of a packet constituting network traffic through the networked device, and the sample includes payload data from the packet constituting network traffic. The payload data of the sampled traffic data is analyzed. It is determined whether sensitive data is detected in the payload data of the sampled traffic data.