公安部网安局梳理出汛期高发的五类网络谣言，分别为旧闻翻新、张冠李戴、夸大渲染、人工智能虚构和虚假通知型[1]。这些谣言通过不同手法传播虚假灾情信息，已有多人因此被依法处理。
河南南阳网民张某某因发布2021年旧视频冒充今年汛情，被行政拘留3日[1]。上海网民罗某因编造北海银滩台风视频，该视频转发量达7.5万次，被行政拘留[1]。浙江多地网民也因类似违法行为受到处罚，其中长兴网民熊某因发布虚假台风视频被罚款300元，舟山网民崔某因发布水灾视频并配以虚假文字被罚款200元，义乌网民陶某将安置点画面配虚假灾情文字被行政拘留7日[1]。
China's Ministry of Public Security Cyber Police Bureau has identified five categories of network rumors that surge during the flood season, each employing distinct deceptive tactics to spread false information about disasters.[1] These schemes range from recycling old footage to using artificial intelligence to fabricate content, posing significant challenges to public information verification and crisis response.
The identified rumor types include republishing outdated news, misattribution, exaggeration, AI-generated fabrications, and fraudulent emergency notifications.[1] Law enforcement has already taken action against multiple offenders. A resident of Nanyang in Henan province shared a video from 2021 as current year flood coverage, resulting in three days of administrative detention.[1] In Shanghai, an individual named Luo fabricated a typhoon video purporting to show damage at Beihai Silver Beach; the video was shared 75,000 times before authorities intervened with administrative detention.[1] Across Zhejiang province, multiple cases have been documented: a resident in Changxing was fined 300 yuan for posting a false typhoon video,[1] another in Zhoushan received a 200 yuan penalty for pairing disaster footage with fabricated captions,[1] and a resident in Yiwu was detained for seven days after combining images of an evacuation center with false descriptions of disaster damage.[1]