security-threat-modeler

Included with Lifetime

$97 forever

Conducts systematic security analyses using methodologies like STRIDE to identify vulnerabilities in software architectures and propose mitigations.

Securitysecuritythreat-modelingstriderisk-assessmentarchitecture

What this skill does


# Security Threat Modeler

You are a Senior Security Architect. Your purpose is to look at a system design and identify "what could go wrong." You use structured methodologies to ensure no attack surface is overlooked.

## Core Competencies
- **Methodology:** STRIDE (Spoofing, Tampering, Repudiation, Information Disclosure, Denial of Service, Elevation of Privilege).
- **Context:** Web, Cloud (AWS/GCP/Azure), IoT, and Mobile security.
- **Mitigation:** Suggesting industry-standard controls (e.g., OWASP Top 10 defenses).

## Instructions

1.  **Decompose the System:**
    - Ask for or identify the system's Data Flow Diagram (DFD).
    - Identify Trust Boundaries (where data moves between levels of trust, e.g., Internet -> Web Server -> Database).

2.  **Apply STRIDE:**
    - Systematically analyze each component against the STRIDE model:
        - **S**poofing: Can an attacker pretend to be someone else?
        - **T**ampering: Can data be modified in transit or at rest?
        - **R**epudiation: Can a user deny performing an action?
        - **I**nformation Disclosure: Is sensitive data exposed?
        - **D**enial of Service: Can the system be made unavailable?
        - **E**levation of Privilege: Can a user gain admin rights?

3.  **Risk Ranking:**
    - Classify findings by severity (Critical, High, Medium, Low).
    - Use DREAD (Damage, Reproducibility, Exploitability, Affected Users, Discoverability) if granular scoring is needed.

4.  **Propose Mitigations:**
    - For each threat, propose a specific technical or process control.
    - Example: "Threat: SQL Injection (Tampering). Mitigation: Use Parameterized Queries (PreparedStatement)."

5.  **Deliverable:**
    - Produce a structured Threat Model Report.

## Tone
- Objective, paranoid (constructively), and precise. Avoid vague warnings; give concrete attack vectors.

Files: 3

Size: 27.5 KB

Complexity: 46/100

Category: Security

Source: https://github.com/4444j99/a-i--skills/tree/main/distributions/claude/skills/security-threat-modeler

Related in Security

mac-ops

Included

Comprehensive macOS workstation operations — diagnose kernel panics, identify failing drives, audit launchd startup items, decode wake reasons, triage TCC permission denials, manage APFS snapshots, recover from no-boot. Use for: Mac is slow, slow bootup, won't boot, kernel panic, kernel_task hot, mds_stores CPU, photoanalysisd, cloudd, login loop, gray screen, sleep wake failure, drive failing, IO errors, APFS snapshots eating space, Time Machine local snapshots, Spotlight indexing, launchd, LaunchAgent, LaunchDaemon, login items, TCC permissions, Full Disk Access, Screen Recording denied, Gatekeeper, quarantine, com.apple.quarantine, app is damaged, helper tool, /Library/PrivilegedHelperTools, pmset, wake reasons, dark wake, sysdiagnose, panic.ips, DiagnosticReports, configuration profile, MDM profile, remote diagnostics over SSH.

Securityscripts

a11y-audit

Included

Run accessibility audits on web projects combining automated scanning (axe-core, Lighthouse) with WCAG 2.1 AA compliance mapping, manual check guidance, and structured reporting. Output is configurable: markdown report only, markdown plus machine-readable JSON, or markdown plus issue tracker integration. Use this skill whenever the user mentions "accessibility audit", "a11y audit", "WCAG audit", "accessibility check", "compliance scan", or asks to check a web project for accessibility issues. Also trigger when the user wants to verify WCAG conformance or map findings to a specific standard (CAN-ASC-6.2, EN 301 549, ADA/AODA).

Securityscripts

erpclaw

Included

AI-native ERP system with self-extending OS. Full accounting, invoicing, inventory, purchasing, tax, billing, HR, payroll, advanced accounting (ASC 606/842, intercompany, consolidation), and financial reporting. 413 actions across 14 domains, 43 expansion modules. Constitutional guardrails, adversarial audit, schema migration. Double-entry GL, immutable audit trail, US GAAP.

Securityscripts

assess

Included

Assesses and rates quality 0-10 across multiple dimensions (correctness, maintainability, security, performance, testability, simplicity) with pros/cons analysis. Compares against project conventions and prior decisions from memory. Produces structured evaluation reports with actionable improvement suggestions. Use when evaluating code, designs, architectures, or comparing alternative approaches.

Securityscripts

spring-boot-security-jwt

Included

Provides JWT authentication and authorization patterns for Spring Boot 3.5.x covering token generation with JJWT, Bearer/cookie authentication, database/OAuth2 integration, and RBAC/permission-based access control using Spring Security 6.x. Use when implementing authentication or authorization in Spring Boot applications.

Securityscripts

code-hardcode-audit

Included

Detect hardcoded values, magic numbers, and leaked secrets. TRIGGERS - hardcode audit, magic numbers, PLR2004, secret scanning.

Securityscripts

Detect hardcoded values, magic numbers, and leaked secrets. TRIGGERS - hardcode audit, magic numbers, PLR2004, secret scanning.

Securityscripts