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]

每经编辑｜段炼 潘海福 据新华社报道，韩国行政安全部10月1日说，韩国政府文件存储系统毁于国家信息资源管理院上周的火灾，致使约75万名公务员最近约7年的相关工作文件 全部丢失。 韩国国家信息资源管理院位于首尔以南约140公里处的大田市，被视为韩国国家计算机网络中枢。这一机构9月26日晚间发生火灾，导致647个政府业务系 统停止运行，其中96个系统被毁。 图片来源：央视新闻 韩国行政安全部说，政府文件存储系统是火灾中被毁的系统之一。2018年以来，韩国政府建议公务员将所有与工作相关的文件保存在该系统，而不是个人 使用的电脑里。由于该系统没有进行外部备份，其中存储的文件已全部丢失，预计依赖该系统的相关政府机构业务将中断。 初步信息显示，火灾起因为机房内锂电池组爆炸。韩国警方10月1日逮捕4人，他们涉嫌失职。 截至1日，受火灾影响的政府业务系统中，已有101个恢复运行，恢复率为15.6%。韩国行政安全部次官金敏在说，政府已选定一家云计算公司，负责将因 火灾停止运行的96个系统迁至位于大邱市的数据中心。受毁系统修复工作预计将耗时约一个月。 韩国总统李在明9月29日就此次服务中断事件道歉。他还指出，2023年曾发生过类 ...