Core Viewpoint - Recent reports from multiple Android users indicate that the Meituan app has allegedly deleted photos and videos from their devices without authorization, particularly after using the app for food delivery or browsing [1][3]. Group 1: User Impact - Over 180 users have contacted customer service regarding the issue, with an estimated potential impact on hundreds of users [3]. - Meituan has established a special technical support team to assist affected users in recovering their data and has apologized to each impacted user, committing to cover all costs and compensate for losses [3]. Group 2: Technical Explanation - The issue is attributed to a rare conflict between the app's automatic cache cleaning and third-party SDKs, which may have led to the erroneous deletion of user photos [3][4]. - Analysts suggest that the app's cache files and user photo directories are normally separate, indicating a possible code vulnerability or excessive use of system deletion interfaces [4]. Group 3: Historical Context - This is not the first incident concerning user data security for Meituan; previous issues include unauthorized collection of sensitive user information in 2018 and 2019 [6]. - Meituan's CEO has publicly stated that privacy protection is considered a significant social responsibility by the company [6]. Group 4: User Base Statistics - According to QuestMobile, Meituan's monthly active users are projected to reach 510 million by December 2025, with a year-on-year growth of 3%, and over 70% of these users are on Android [3].