Sure, that user can encrypt all the documents that they have access to and care about, so that can be the target of a ransom. Also, in many smallish organizatio

Sure, that user can encrypt all the documents that they have access to and care about, so that can be the target of a ransom. Also, in many smallish organizations users have access to e.g. a common network share, so in the absence of proper backups, a single compromised user (e.g. the owner/manager's administrative assistant with access to all kinds of documents) may be able to seriously disrupt the whole organization.