Group 1 - The rumor that social security cards have no expiration date is false; social security cards do have an effective period, which may be printed on the back in some regions [2] - If the expiration date is not marked, local human resources departments and banks typically notify users before expiration through SMS or announcements [2] - Users can apply for a replacement if the card is damaged or unreadable, and the process can be done through various service platforms [2] Group 2 - The claim that cherries contain melatonin and can aid sleep lacks sufficient scientific support, despite cherries being identified as a fruit with relatively high melatonin content [5] - The highest melatonin content in cherries is approximately 13.46 ng/g, but consuming 100g of cherries only provides about 1.3 μg of melatonin, which is minimal compared to the body's natural production [5] - The body's melatonin production peaks at 03:00-04:00, generating a total of 10-80 μg per night, indicating that the sleep aid effect from cherries is negligible [5] Group 3 - In 2025, Shanghai police cracked down on 10 cases of corporate-related rumors, with two individuals facing criminal charges and eight receiving administrative penalties [7] - A gaming company was targeted by multiple rumors, including false claims about its game being abandoned and investors withdrawing, leading to administrative penalties for the perpetrator [7] - In another case, a financial company faced stock price fluctuations due to a rumor about a significant fine for insider trading, prompting a swift response to issue a denial [8] Group 4 - A recent incident in Jiangxi involved a netizen spreading false claims about a public employee's misconduct, resulting in administrative detention and fines for the individual [8] - The individual used AI to generate misleading content without verifying its accuracy, highlighting the risks associated with misinformation in the digital space [8]

Group 1 - In 2025, the Shanghai Xuhui police intensified efforts to combat online rumors affecting enterprises, resulting in the investigation of 10 cases related to corporate rumors, with 2 individuals facing criminal measures and 8 receiving administrative penalties [1] - A network technology company faced multiple rumor attacks, including false claims that its game "Absolute Zone Zero" was abandoned and that investors withdrew funding, leading to administrative penalties for the perpetrator [2][3] - A financial company experienced significant stock price fluctuations due to a rumor about a 90 million yuan fine for insider trading, which was later debunked by the company [5] Group 2 - The Xuhui police established a mechanism for reporting corporate rumors and enhanced collaboration with various departments to monitor public sentiment towards key enterprises [6] - In the real estate sector, a project was targeted by false claims regarding construction quality, which led to complaints from homeowners; the individuals responsible were penalized for spreading misinformation [5]