Delephobia

The fear of deletion; the fear of having your important (or unimportant, depending on the severity) documents, photos, or other files deleted.

This phobia was renamed by The Mariocrafter due to the original name, diagraphephobia, being permanently associated with friday night funkin. And delephobia only applies to deleted data, not being deleted.

Andy keeps five copies of his files in three different physical locations. He's has delephobia!