# Attack Mob T1636 Protected User Data > Analyze MITRE ATT&CK T1636 Protected User Data in the mobile matrix. Use for TTP triage, detection engineering, hunting, defensive emulation planning, mitigations, incident response mapping, ATT&CK coverage, or questions mentioning T1636, Protected User Data, or mobile ATT&CK. Adversaries may utilize standard operating system APIs to collect data from permission-backed data stores on a device, such as the calendar or contact list. - Skill: `santosomar/attack-mob-t1636-protected-user-data` (Agent Skill, multi-file: 11 files) - Install (CLI): `npx skillmds@latest add santosomar/attack-mob-t1636-protected-user-data` - Raw SKILL.md: https://api.skillmd.com/api/skills/santosomar/attack-mob-t1636-protected-user-data/raw - Safety review: pending - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Productivity - License: MITRE ATT&CK Terms of Use apply to ATT&CK-derived content. See h - Author: santosomar (https://skillmd.com/u/santosomar) - Updated: 2026-09-22 - Page: https://skillmd.com/skills/santosomar/attack-mob-t1636-protected-user-data --- # MITRE ATT&CK T1636: Protected User Data ## When to use this skill Use this skill when the task involves T1636, Protected User Data, mobile ATT&CK, TTP mapping, detection engineering, hunting, incident-response enrichment, control validation, or authorized adversary-emulation planning. Treat it as a defensive analysis aid: keep outputs focused on understanding, detecting, mitigating, and safely validating this ATT&CK technique. ## Technique context - ATT&CK domain: mobile - ATT&CK ID: T1636 - Technique name: Protected User Data - Type: technique - ATT&CK URL: https://attack.mitre.org/techniques/T1636 - Tactics: collection - Platforms: Android, iOS - Required permissions: Not specified - Effective permissions: Not specified - Defenses bypassed: Not specified ## ATT&CK description Adversaries may utilize standard operating system APIs to collect data from permission-backed data stores on a device, such as the calendar or contact list. These permissions need to be declared ahead of time. On Android, they must be included in the application’s manifest. On iOS, they must be included in the application’s `Info.plist` file. In almost all cases, the user is required to grant access to the data store that the application is trying to access. In recent OS versions, vendors have introduced additional privacy controls for users, such as the ability to grant permission to an application only while the application is being actively used by the user. If the device has been jailbroken or rooted, an adversary may be able to access [Protected User Data](https://attack.mitre.org/techniques/T1636) without the user’s knowledge or approval. ## Agent workflow 1. Clarify scope: identify the system, asset class, log sources, cloud or endpoint platform, and whether the user wants triage, detection, coverage assessment, or safe emulation planning. 2. Load bundled resources as needed: use `references/technique-profile.json` for structured metadata, `references/detection-and-mitigation.md` for triage and telemetry guidance, `references/known-threat-context.md` for ATT&CK relationship context, and `templates/` for repeatable outputs. 3. Map observations to ATT&CK: compare the user's evidence to the ATT&CK description, tactics, platforms, and known procedure patterns before asserting a match. 4. Produce defensive outputs: prioritize hypotheses, telemetry requirements, detection logic ideas, validation steps, containment guidance, and mitigations. 5. Preserve uncertainty: distinguish confirmed evidence, plausible indicators, assumptions, and gaps. Recommend what to collect next. 6. Stay safe: do not provide malware, credential theft, persistence, evasion, destructive automation, or unauthorized exploitation instructions. For adversary emulation, keep steps bounded to approved lab or control-validation contexts and omit operational abuse details. ## Bundled resources - `references/technique-profile.json`: machine-readable ATT&CK metadata for this technique. - `references/detection-and-mitigation.md`: detection notes, telemetry checklist, triage questions, mitigation candidates, and false-positive considerations. - `references/known-threat-context.md`: ATT&CK relationship context with attribution cautions. - `templates/detection-brief.md`: detection engineering brief template. - `templates/hunt-plan.md`: threat hunt plan template. - `templates/incident-response-note.md`: incident response note template. - `templates/coverage-assessment.md`: ATT&CK coverage assessment template. - `scripts/render_brief.py`: local helper that renders a Markdown defensive brief from `technique-profile.json`. - `assets/output-schema.json`: JSON schema for structured technique analysis outputs. To generate a quick brief, run `python scripts/render_brief.py --output brief.md` from inside this skill directory, or adapt the templates directly. ## Detection guidance No ATT&CK detection guidance was present in the source STIX object. ## Useful telemetry and data sources - Not specified in the STIX object. ## Mitigations to consider - Use Recent OS Version - User Guidance ## Known threat context Use these examples only as contextual leads, not as proof that an observed event is this technique: - No group or software uses relationships were included for this technique in the source STIX bundle. ## Recommended output pattern When responding with this skill, structure the answer as: - Assessment: whether the evidence supports this ATT&CK mapping and why. - Evidence: specific indicators, logs, behaviors, and assumptions. - Detection: telemetry sources, analytic logic, and tuning considerations. - Response: containment, eradication, recovery, and validation actions. - Coverage gaps: missing logs, sensors, controls, or environmental details. - References: include the ATT&CK URL and any user-provided evidence references.