Dark data is all the info your team stores but rarely uses — think old files,...
https://rileysnewcolumn.readspirex.com/posts/how-do-i-use-regex-patterns-to-find-pii-in-documents
Dark data is all the info your team stores but rarely uses — think old files, logs, and backups. Around 55% of stored data is “dark,” meaning it just sits there, costing money and storage space