This proceedings, HCI-CPT 2024, constitutes the refereed proceedings of the 6th International Conference on Cybersecurity, Privacy and Trust, held as Part of the 26th International Conference, HCI International 2024, which took place from June 29 - July 4, 2024 in Washington DC, USA. Two volumes of the HCII 2024 proceedings are dedicated to this year’s edition of the HCI-CPT Conference. The first focuses on topics related to Cyber Hygiene, User Behavior and Security Awareness, and User Privacy and Security Acceptance. The second focuses on topics related to Cybersecurity Education and Training, and Threat Assessment and Protection.