What Are the Differences Between HSS, VSS, and WAF?

HSS, Vulnerability Scan Service (VSS), and Web Application Firewall (WAF) are provided by HUAWEI CLOUD to help you defend hosts, websites, and web applications against risks and threats, improving system security. It is recommended that the three services be used together.

**Table 1** Differences between HSS, VSS, and WAF
Service Name	Category	Protected Object	Function
HSS	Host security	Hosts	Asset management Vulnerability management Intrusion detection Baseline inspection Web tamper protection
VSS	Application security	Websites	Vulnerability scan Web content check Website health check Baseline compliance check
WAF	Application security	Web applications	Basic web protection CC attack protection Precise protection

Parent topic: About HSS

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