1. Reconnaissance
TA0043Gathering information to plan future operations.
- T1595Active Scanning
- T1589Gather Victim Identity Info
- T1598Phishing for Information
- T1590Gather Victim Network Info
The 14 Enterprise tactics with their TA IDs, and the technique IDs you will actually meet in reports and exam questions.
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ATT&CK documents over 200 techniques and treats them all equally. These three carry a disproportionate share of real incidents and exam questions.
Gathering information to plan future operations.
Establishing resources to support operations.
Gaining an initial foothold within a network.
Running adversary-controlled code on a system.
Maintaining access across restarts and interruptions.
Gaining higher-level permissions on a system.
Avoiding detection by security software and analysts.
Stealing credentials like account names and passwords.
Gaining knowledge about the internal network and systems.
Pivoting through the environment to control remote systems.
Gathering sensitive information prior to exfiltration.
Communicating with compromised systems.
Stealing data from the compromised network.
Manipulating, interrupting, or destroying systems and data.
A tactic is the adversary’s goal, the why: Initial Access, Persistence, Exfiltration. A technique is how they achieve it: Phishing, Valid Accounts, Exfiltration Over C2 Channel. Tactics are the columns of the matrix and there are only 14 of them; techniques are the hundreds of entries filling those columns. Tactic IDs start with TA, technique IDs start with T.
Fourteen, running from Reconnaissance through to Impact. Note that the numbering does not match the order: Initial Access is TA0001 but appears third, because Reconnaissance (TA0043) and Resource Development (TA0042) were added later, in 2020, when ATT&CK extended to cover pre-compromise activity. Ordering by ID is a common mistake.
A technique has an ID such as T1059 (Command and Scripting Interpreter). A sub-technique appends a decimal, so T1059.001 is the PowerShell variant of it. Sub-techniques were introduced in 2020 to break broad techniques into specific behaviours. When a question or report cites T1566.001, it is naming Spearphishing Attachment specifically rather than phishing in general.
No, and this is the distinction most often tested. The Cyber Kill Chain is a linear seven-phase narrative of an intrusion. ATT&CK is a matrix of observed behaviours with no assumed order: an adversary may loop through Discovery and Lateral Movement repeatedly, skip tactics entirely, or run several in parallel. The tactics are categories, not steps.
T1566 Phishing, because it begins a large share of real intrusions. T1059 Command and Scripting Interpreter, because it is what executes once an attacker has a foothold, most often PowerShell. And T1486 Data Encrypted for Impact, the ransomware endgame, which sits under Impact rather than Exfiltration. Those three cover a disproportionate amount of what you will read in incident reports.
Yes. Enterprise covers Windows, macOS, Linux, cloud, containers and network devices, and is the one most people mean by ATT&CK. Mobile covers Android and iOS, and ICS covers industrial control systems, which have their own tactics reflecting physical process impact. The tactic list on this page is the Enterprise matrix.