Hello, what you want to ask is what is the theme of the 2023 education month public welfare propaganda film? The theme of the 2023 Education Month Public Welfare Publicity Film is "The Secret Hidden in the Photo". By inquiring about the government official website, I learned that the Central Secrecy Office released the public welfare propaganda "Secrets Hidden in Photos" for the 2023 Education Month to the whole society. The propaganda film pointed out that seemingly ordinary shots may reveal confidential and sensitive information such as military locations, experimental data, meeting minutes, weapons and equipment through four common photo scenes, which is intended to remind every citizen to be vigilant at all times. Therefore, the theme of the 2023 Education Month Public Welfare Publicity Film is "The Secret Hidden in the Photo".