PSA Certification (Platform Security Architecture Certification) is a security certification framework launched by ARM to validate the security of IoT devices and embedded systems. PSA Certification uses a tiered security evaluation process to ensure that devices meet security best practices during design and development, focusing on three key aspects: hardware security, software security, and system security. The certification is divided into PSA Level 1, Level 2, and Level 3, each corresponding to different levels of security robustness and threat models, helping device manufacturers and developers demonstrate the security and trustworthiness of their products to users. Tuya’s independently developed TS24-U module has successfully obtained PSA Certified Level 1 device certification. Achieving PSA Level 1 certification means that Tuya’s TS24-U module has been security-certified from design to deployment, incorporating the necessary security measures and defense mechanisms to effectively address security threats and potential risks. Developers using the TS24-U module for Matter over Thread device development can ensure their Matter devices meet fundamental information security requirements while enhancing user trust in their branded products.