The data levels or categories can be set up arbitrarily, but typically they group data according to the level of damage that would occur if the data is accessed by someonewith malicious intent.
数据级别或分类可任意设置,但通常是根据恶意用户访问数据造成的破坏程度分组的。
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"You could be competing against someonewith three times your experience, or conversely, against someone who can do the job at half your salary level," she says.