Public digital displays—such as advertising screens in malls, information kiosks at bus stops, and navigation panels in government service centers—enhance urban smartness but also harbor significant security risks. Firstly, these devices are often connected to the internet or internal networks; without robust security measures, they become easy entry points for cyberattacks. Once compromised, attackers can alter displayed content to spread misinformation or even deliver malware. Secondly, many screens run outdated operating systems or unpatched software, leaving known vulnerabilities exploitable for remote control. Additionally, default passwords are frequently left unchanged, and access permissions are often overly permissive, allowing unauthorized individuals to easily gain control. More critically, if a display is linked to backend databases or internal management systems, it could serve as a foothold for broader network infiltration, potentially leading to data breaches or system outages. Therefore, deploying public digital screens requires comprehensive cybersecurity strategies: regular firmware updates, strong password policies, strict access controls, network segmentation, and real-time monitoring with incident response protocols—to ensure the integrity and trustworthiness of public information systems.
公共数字屏（如商场广告屏、公交站信息屏、政务大厅导览屏等）在提升城市智能化水平的同时，也潜藏着不容忽视的安全隐患。首先，这些设备通常连接互联网或内部网络，若缺乏有效安全防护，极易成为黑客攻击的入口。一旦被入侵，攻击者可篡改显示内容，传播虚假信息甚至恶意代码。其次，部分屏幕系统使用老旧或未及时更新的操作系统与软件，存在已知漏洞，为远程控制提供可乘之机。此外，一些设备默认密码未修改、权限设置宽松，使得未经授权的人员也能轻易接入并操控屏幕。更严重的是，若该屏幕与后台数据库或内部管理系统相连，还可能成为渗透整个组织网络的跳板，导致数据泄露或系统瘫痪。因此，部署公共数字屏时，必须加强网络安全策略，包括定期更新固件、设置强密码、实施访问控制、隔离网络环境，并建立实时监控与应急响应机制，以保障公共信息系统的安全与可信。
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