> BB and S3 both have eleven 9 durability, how much does using both increase this? Putting your data in either Backblaze B2 or Amazon S3 suffer from other fail

> BB and S3 both have eleven 9 durability, how much does using both increase this? Putting your data in either Backblaze B2 or Amazon S3 suffer from other failure modes outside of the durability of the raw system. For example, let's say your IT person is poking around in their Amazon S3 account and accidentally clicks the "delete" button and all your data is gone? Or what if your credit card has a transaction declined, and your IT guy has left your company or the emails from Amazon are being put in the "Spam" folder of your email program. Or maybe a malicious Amazon employee writes a program to delete all the data in Amazon S3 from all customers? What if one of your employees is really disgruntled and logs into your Amazon S3 account and just to spite you deletes all your data? In every one of these situations, if you have a copy in Backblaze B2 and also another copy in Amazon S3, you can recover your data from the other vendor. I recommend using a separate credit card to pay for your Amazon S3 account and your Backblaze B2 account. They should expire a year apart. And don't give the logins to both systems to one disgruntled employee in your organization. Only give that disgruntled employee access to one or the other. Make sense?