LINE Yahoo Corporation (hereinafter, LINE Yahoo) conducted a survey aimed at preparing for false and misinformation during flood disasters, coinciding with the flood season when risks from torrential rain and typhoons increase. The company also introduced LINE Yahoo's initiatives against false and misinformation. 20.5% Have "Heard or Seen False/Misinformation Regarding Damage Status and Evacuation Information During Flood Disasters" 20.5% of respondents had heard or seen false/misinformation related to past flood disasters (heavy rain, typhoons, etc.), which translates to about 1 in 5 people in the overall survey. Of those, 86.6% cited "social media" as the source where they encountered false/misinformation, making it the most common source. This was followed by "television" (13.4%) and "news sites" (9.3%). Content of False/Misinformation: "Information on Damage Status" Accounts for About Half The most common type of false/misinformation encountered by those who were exposed to it was "information on damage status (e.g., rising rivers, flooded roads, etc.)," at 51.4%. This was followed by "information on crime and public safety" (24.1%), "information on relief supplies" (22.2%), and "information on lifelines (electricity, gas, water)" (19.9%). It can be inferred that during disaster situations where confusion persists, information that incites people's anxiety tends to spread. 57.3% Responded They Are "Not Confident" in Determining the Truthfulness of False/Misinformation Regarding the question of confidence in determining the truthfulness of false/misinformation about damage status and evacuation information, just under 60% of respondents (57.3%) answered they were "not confident" (※1). In recent times, cases of skillfully created images and videos by generative AI being spread have been confirmed, highlighting the importance of the ability to discern information. Furthermore, a survey on the amount of false/misinformation during recent flood disasters showed that