广电专用局域网安全风险研判与防护部署研究

Research on Security Risk Assessment and Protection Measures for Dedicated Local Area Networks Used in Broadcasting and Television Applications

摘要

围绕广电专用局域网承载播控、媒资交换与运维监测等关键业务的安全需求，文章分析其边界渗透、内部越权、数据泄露与设备漏洞风险，并以省级广电中心为案例开展防护部署研究。结果显示，部署NGFW、IDS、VPN、终端安全管理与日志审计后，高风险项由10个降至2个，风险等级降低率达80%，漏洞修复完成率由60%提升至95%，月均业务中断时长由120 min降至15 min，验证了分层防护与持续治理的有效性。

Abstract

Addressing the security requirements of critical functions in broadcast-specific LANs—including transmission control, media asset switching, and operation/operation monitoring—the article analyzes risks such as perimeter penetration, internal privilege escalation, data breaches, and device vulnerabilities. Using a provincial broadcasting center as a case study, the research investigates protection deployment strategies. Results demonstrate that implementing NGFW, IDS, VPN, endpoint security management, and log auditing reduced high-risk items from 10 to 2, lowered risk levels by 80%, increased vulnerability resolution rates from 60% to 95%, and decreased average monthly service downtime from 120 minutes to 15 minutes, validating the effectiveness of layered protection and continuous governance.

关键词

广电专用局域网 / 网络安全 / 边界防护 / 访问控制 / 风险评估

Key words

dedicated lan for broadcasting and television / network security / boundary protection / access control / risk assessment

参考文献

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