有效期 是什么？
有效期 The designated timeframe during which a cryptographic certificate or key is considered valid and trusted for use, after which it is expired or invalidated.
Source: ISO 27001, NIST Cybersecurity Framework, MITRE ATT&CK
How is “有效期” Used in Practice?
证书不得在有效期外使用，过期证书被视为不可信。
Certification Exam Relevance
Who Needs to Know This Term?
- SOC Analysts
- Security Engineers
- Incident Responders
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有效期 是什么？
The designated timeframe during which a cryptographic certificate or key is considered valid and trusted for use, after which it is expired or invalidated.
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