Ch.4 Managing Data, Information and Content Procedure
Question
What is the 3-2-1 backup rule?
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Answer
Keep 3 copies, on 2 types of media, with 1 copy offsite or isolated.
Cloud sync is not the same as backup if deletion or ransomware syncs everywhere.
JRC DigComp / EPSOHQ Digital Skills DB
Deep dive
3-2-1 Backup: the rule and its ransomware trap
Keep 3 copies, on 2 types of media, with 1 copy offsite or isolated. Cloud sync alone fails if ransomware or deletion propagates everywhere.
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