Group 1: Public Wi-Fi Security - Public Wi-Fi poses significant risks including data eavesdropping, where hackers can easily intercept unencrypted network data to obtain sensitive information such as account credentials and chat logs [2] - Hackers can create fake hotspots that mimic legitimate networks, leading users to unknowingly connect and expose their data [3] - There is a risk of direct attacks on devices connected to the same network, potentially resulting in the installation of malware or ransomware [5] Group 2: Personal Information Protection - The risk of information leakage can lead to targeted scams, where criminals exploit personal details to impersonate legitimate entities for fraud [13] - Identity theft can occur when personal information such as ID numbers and photos are misused for illegal activities [15] - Leaked credentials from one site can be used to attempt unauthorized access to other important accounts, a practice known as credential stuffing [17] Group 3: Weak Passwords and Password Reuse Risks - Weak passwords are easily guessable, with common patterns like "123456" or personal information being particularly vulnerable to attacks [34] - Strong passwords should be at least 12 characters long and include a mix of uppercase letters, lowercase letters, numbers, and special characters [34] Group 4: Data Backup Awareness - The loss of data can have severe emotional and financial impacts, including the permanent loss of cherished memories and critical business documents [34][36] - It is recommended to maintain three copies of important data, stored on two different media types, with at least one copy kept offsite [39][41][43] Group 5: Youth Internet Addiction - Internet addiction can lead to various health issues, including vision problems, sleep disturbances, and emotional challenges such as anxiety and depression [45] - Excessive internet use can negatively impact academic performance and lead to disengagement from educational pursuits [46] - Parents are encouraged to communicate openly with their children about internet use and establish reasonable screen time limits [48]