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Google Drive misplaces months' worth of customer files
(www.theregister.com)
This is a most excellent place for technology news and articles.
Google is fine for most people, but it shouldn't be the sole backup. If you don't have (at least) 3 separate instances of a backup, you don't really have a reliable backup strategy. Preferably an onsite hard backup, an offsite hard backup, and a cloud backup.
I know quite a few tech oriented people and I don't know anyone who actually has the holy trinity of backups. I know quite a few who have physical backups at home and cloud though.
I do.*
Considering data durability for some data services are providing 11 9’s, just two of those leads to extremely high durability. So to say that is unreliable is just not reasonable. I have no problem with being risk averse but that is a bit extreme.