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-[ ]**Alert data:** The raw event(s) that triggered the alert -- including all available fields (source IP, destination IP, username, hostname, process name, command line, file hash, URL).
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-[ ]**ATT&CK mapping:** If the alert rule maps to a MITRE ATT&CK technique, note the technique ID.
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-[ ]**ATT&CK mapping:** If the alert rule maps to a MITRE ATT&CK technique, note the technique ID, tactic, reviewed ATT&CK version, and technique URL.
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-[ ]**ATT&CK source-version evidence:** Record whether ATT&CK v19.1 was reviewed for this triage. If an organization still uses legacy ATT&CK v16 labels internally, mark them as legacy mappings and verify any currentness claim against the current ATT&CK source.
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-[ ]**Asset context:** What is the affected asset? (Server, workstation, cloud instance, network device.) What is its business criticality? (Revenue-generating, customer-facing, development, test.)
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-[ ]**User context:** Who is the associated user? (Role, department, normal working hours, recent activity patterns.)
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-[ ]**Historical context:** Has this alert fired before? What was the previous disposition? Has this user or host generated related alerts recently?
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1.**Temporal correlation:** What other events occurred on the same host or by the same user within +/- 30 minutes of the alert?
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2.**Lateral correlation:** Are there related alerts on other hosts or from other security tools for the same time period?
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3.**Behavioral correlation:** Does this activity match known ATT&CK technique patterns? Does it match the user's or system's normal behavior baseline?
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4.**Threat intel correlation:** Do any indicators match known threat actor infrastructure, malware campaigns, or published IOCs?
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5.**Kill chain correlation:** Where does this activity fall in the attack lifecycle? Is there evidence of preceding (reconnaissance, initial access) or subsequent (persistence, lateral movement, exfiltration) stages?
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4.**Source-version check:** Is the rule's ATT&CK mapping current for ATT&CK v19.1? If the rule metadata is pinned to v16, verify that the technique, tactic, and URL still match the current Enterprise matrix before using the mapping for priority.
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5.**Threat intel correlation:** Do any indicators match known threat actor infrastructure, malware campaigns, or published IOCs?
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6.**Kill chain correlation:** Where does this activity fall in the attack lifecycle? Is there evidence of preceding (reconnaissance, initial access) or subsequent (persistence, lateral movement, exfiltration) stages?
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**ATT&CK-based correlation framework:**
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@@ -194,8 +197,8 @@ Produce the triage decision as a structured report:
| Alert rule metadata |[ATT&CK labels embedded in rule]|[Matches current sources / legacy labels documented / unmapped]|
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### Affected Entities
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| Entity | Value | Context |
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|--------|-------|---------|
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## 6. Framework Reference
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### MITRE ATT&CK v16
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### MITRE ATT&CK v19.1
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For alert triage, ATT&CK provides the shared vocabulary for understanding what adversary behavior the alert represents and what to look for next. Key uses during triage:
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-**Technique identification:** Map the alert to a specific ATT&CK technique to understand the adversary's objective.
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-**Kill chain positioning:** Determine where the detected activity falls in the attack lifecycle to assess urgency and look for related activity.
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-**Correlation guidance:** Use ATT&CK's tactic flow to predict what an adversary would do before and after the detected technique.
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-**Version verification:** ATT&CK v19.1 is the current ATT&CK website version as of April 28, 2026. Legacy ATT&CK v16/v16.1 mappings should not be reported as current without checking the current technique page, tactic, and source URL.
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### Pitfall 5: Delaying Escalation While Seeking Perfect Information
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Waiting for complete certainty before escalating a high-priority alert costs response time. NIST SP 800-61 recommends erring on the side of over-notification. If 20 minutes of investigation has not resolved the disposition and the alert involves a critical asset or privileged account, escalate to Tier 2 or the IR team with your current findings and continue investigation in parallel.
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Waiting for complete certainty before escalating a high-priority alert costs response time. If 20 minutes of investigation has not resolved the disposition and the alert involves a critical asset or privileged account, escalate to Tier 2 or the IR team with your current findings and continue investigation in parallel.
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### Pitfall 6: Treating Legacy ATT&CK Labels as Current Evidence
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Many detection rules still embed ATT&CK v16 labels. Do not copy those labels into a triage report as current ATT&CK evidence without verifying them against ATT&CK v19.1. If the rule metadata has not been refreshed, mark the mapping as legacy and include the reviewed current-source date.
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@@ -336,11 +350,11 @@ This skill processes user-supplied content that may include alert payloads, log
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