Implementing Secure Cryptographic Practices in IT Support

Develop a comprehensive plan for integrating post-quantum cryptography into our IT support systems. This should include:

1. An overview of post-quantum cryptography and its importance for data security in the era of quantum computing.
2. A step-by-step implementation strategy for updating current cryptographic systems to quantum-resistant methods.
3. Key considerations and potential challenges in the transition process.
4. A list of recommended tools, technologies, or algorithms that support quantum-resistant encryption.
5. Training and support guidelines for IT staff to effectively manage and troubleshoot the new systems.
6. A timeline for the implementation process, including phases and milestones.

Ensure the plan is detailed, actionable, and suitable for IT professionals to execute.