Ouch… There are good reasons why you want to keep data within your infrastructure.
Every thirdparty can leak your data and then you have to clean the mess with your customers:
Example: Hosted #Zendesk was breached… Hello fancy companies who have to tell me my data were exposed?
I wonder how many companies now bother to inform their customers.
@sheogorath First reply by Troy Hunt to a comment to that end in the thread: "I wouldn’t assume for a moment that it’s more secure in your own data centre."
...and even though I'm all for self-hosting, he's probably right. Your own data centre reduces fate sharing and potentially limits the extent of a breach (to your data instead of everyone using that service). It doesn't reduce your risk of a breach, unless you happen to have better security practices than a comparable hosted service.
@galaxis Well, having all in your own datacenter at least unifies the risk level to some extend.
Of course that goes in both directions. You have bad security measures -> bad security for everything
You have good security measures -> good security for everything.
And as you already said, it limits the extend of the breach, along with the level of attractivity to attack such a company because the cost/profit ratio gets worse.
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