| This article [1] explains an important distinction between backups and archives. "Backups exist in case information is accidentally destroyed. Backups should cover all information, but each one only needs to be kept for a short time: essentially however long it will take the organisation to discover the destruction. … Archives, by contrast, involve long-term storage of the organisation's history." It concludes that it's probably not necessary to delete data from a backup — just keep a record of what requests for deletion were made, in the rare event that restoration from a backup is necessary. And avoid storing personal data in archives, or else split it out by-person, so it can be deleted if required. [1] https://community.jisc.ac.uk/blogs/regulatory-developments/a... |
https://azure.microsoft.com/en-us/blog/sql-database-long-ter...
Sure if your backup is only weekly or monthly until the next full one it might not be an issue but many companies keep full backs that span years and even decades.
Just one more point of data the GDPR doesn’t actually define a difference between backup and an archive. The article you’ve mentioned is essentially an untested legal argument that you may use in court if something happens or if the regulator audits you. But all of these arguments have not been tested yet in court and there is a lot of contradictory advice on essentially every part of the GDRP even at the most reputable levels (at this point ask the top 5 law firms in the UK and you’ll get 7 opinions).