Providing information on the topic of 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 across all industries; providing a website featuring technology that allows users to describe the actions an adversary might take while operating within an enterprise network for the purpose of characterizing and describing post-compromise adversary behavior; providing information and advice to assist in developing computer and network system detection defenses for compromise, pre-, and post-compromise; 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; providing information and advice to assist in adversary emulation and red teaming to test and measure the effectiveness of computer network defenses; computer security consultation, namely, providing a collection of information on the tactics and techniques employed by cyber adversaries; 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