swift-security-expert

Review Swift code for Apple platform security anti-patterns and remediation.

30|1|Updated Mar 5, 2026

Search Tags:#secure coding #swift #cryptography #biometrics #keychain #ios security #apple platform

Ready to run

npx skills add https://github.com/ivan-magda/swift-security-skill --skill swift-security-expert

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: swift-security-expert
Source: https://github.com/ivan-magda/swift-security-skill/tree/main/swift-security-expert
Command: npx skills add https://github.com/ivan-magda/swift-security-skill --skill swift-security-expert

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill addresses the common issue of AI-generated code producing insecure security practices on Apple platforms, particularly around Keychain, biometrics, and cryptography.

Core Features & Use Cases

Secure Credential Storage: Implement Keychain Services correctly for tokens, keys, and passwords.
Biometric Authentication: Securely integrate Face ID and Touch ID, avoiding bypass vulnerabilities.
CryptoKit Best Practices: Utilize modern Swift cryptography for encryption, signing, and key management.
Use Case: Review Swift code for common security anti-patterns like storing secrets in UserDefaults, using LAContext.evaluatePolicy() alone for authentication, or ignoring OSStatus codes, and replace them with Apple's recommended secure patterns.

Quick Start

Use the swift security expert skill to review the current security code for authentication bypasses, credential storage issues, and cryptographic correctness.

Frequently Asked Questions about swift-security-expert

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I avoid LAContext bypass vulnerabilities in Swift biometric authentication?▼

Secure Keychain Services credential storage requires correctly handling OSStatus codes and avoiding common anti-patterns like storing tokens or passwords in UserDefaults. Replace these with Apple's recommended Keychain patterns for secure data persistence.

How do I select the correct CryptoKit algorithms for Swift encryption and signing?▼

Selecting correct CryptoKit algorithms for Swift encryption and signing involves utilizing modern Swift cryptography best practices for key management, ensuring cryptographic correctness, and mapping implementations to OWASP MASVS/MASTG standards.

What are common iOS security anti-patterns in AI-generated Swift code?▼

Common iOS security anti-patterns in AI-generated Swift code include storing secrets in UserDefaults, using LAContext.evaluatePolicy() alone for authentication, and ignoring OSStatus codes, which require remediation strategies to fix.

Can I use the Secure Enclave to store hardware-bound secrets for Apple platform security?▼

Yes, you can use the Secure Enclave to implement hardware-bound secrets for Apple platform security. This approach ensures that cryptographic keys remain isolated within dedicated hardware, preventing unauthorized extraction.

What's the best way to map Swift code security findings to OWASP MASVS/MASTG standards?▼

The best way to map Swift code security findings to OWASP MASVS/MASTG standards is to review authentication bypasses, credential storage issues, and cryptographic correctness, then apply targeted remediation strategies based on those standards.