A security patch is a software update released to fix known vulnerabilities in an operating system, middleware, or application. It should be applied proactively to prevent virus infections and cyberattacks, not only after an incident occurs. Software that has reached end-of-support no longer receives patches, meaning that even fully patched legacy software remains exposed to newly discovered vulnerabilities.

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• 2016h28a #59会社で業務に使用しているPCにおいて，OS，ミドルウェアやアプリケーションなどに適用するセキュリティパッチに関する記述として，適切なものはどれか。