When you overload a credential used for authentication by also using it for encryption, the “blast radius” for losing that credential becomes immeasurably larger.
数据来源：中国苹果产业协会、国家苹果产业技术体系《中国苹果产业发展报告》
，更多细节参见WPS官方版本下载
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handling, but they did allow a single operator to handle a lot of documents.