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Encrypt backup data with a per-user key, keep the keys only in hot storage, delete the key when a user is deleted.
by jsnell 8y ago
Encrypt backup data with a per-user key, keep the keys only in hot storage, delete the key when a user is deleted.
- anoncake 8y agoWont that make the backups useless in case of a data loss (i.e. always)?
- jsnell 8y agoYou don't keep a single copy of each key, but store enough redundant copies to get the proper number of nines. Preferably that's redundant geographically, in terms of storage technology, and in write frequency. The important part is just that the keys don't end up in long term cold storage. Either it's only retained for a short period (e.g. tape backups that get rotated after two weeks), or it supports live deletion.