Security

Protecting systems, data, and applications from threats and vulnerabilities.
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Fundamentals of Privacy and Compliance


Diagram showing privacy and compliance fundamentals, including data protection, legal requirements, and security measures.

Privacy and compliance fundamentals: protect user data, meet legal requirements, and build systems defensible in an audit.

Fundamentals of Software Security


Diagram showing software security fundamentals including threats, vulnerabilities, authentication, authorization, encryption, and secure development practices.

Software security fundamentals: threats, vulnerabilities, and defenses. Build systems that protect data and users from attacks.

How to Use Multiple GitHub Accounts on the Same Computer: Complete Guide


Learn how to manage multiple GitHub accounts on one computer using SSH keys. Includes step-by-step instructions, shell functions, and best practices for macOS.

How to Fix SSH Key Permission Denied (publickey) Error: Complete Guide


Learn how to fix the 'Permission denied (publickey)' SSH error by properly setting SSH key permissions on Windows and Linux systems. Includes step-by-step instructions, troubleshooting tips, and security best practices.