Providing information on the topic of operational critical systems, cyber intrusions, cyber adversaries, cyber threat intelligence, cyber security, system compromise, and network compromise and preparing related reports and technical documentation; providing information on the tactics and techniques employed by adversaries to exploit or compromise, operate within, and cause impacts to computer networks; providing information and advice to assist in network defense and to assist in prioritizing computer network defense by detailing compromise, pre-, and post-compromise tactics, techniques, and procedures used by adversaries to execute their objectives; computer security consultation, namely, providing a collection of information characterizing the post-compromise activities of cyber adversaries to describe what might occur during an intrusion after an adversary has acquired access to a computer network; providing information on the topic of cyber intrusions, cyber adversaries, cyber threat intelligence, cyber security, system compromise, and network compromise for use in technologies and applications including mobile devices, enterprise networks, medical devices, embedded devices, control systems, and the connections between these systems and preparing related reports and technical documentation; providing information on the topic of cyber intrusions, cyber adversaries, cyber threat intelligence, cyber security, system compromise, and network compromise for use in applications including mobile devices, enterprise networks, medical devices, embedded devices, network devices, cloud systems, control systems, and the connections between these systems and preparing related reports and technical documentation; consulting services in the field of design, selection, implementation and use of computer hardware and software systems for others; research in the field of cyber intelligence technology and cyber security technology; computer security consultancy in the field of scanning and penetration testing of computers and networks to assess information security vulnerability