iOS Question Should I use two private sign keys for two different companies?

Sandman

Expert
Licensed User
Longtime User
I produce an app that I publish for my own company.

Now I'm about to publish another app, but this new app is for another company. They have their own account with Apple (that I helped them create it - they didn't have an app before).

For my app in my company, I have gone through the guides and created a private sign key, certificates and all that.

But for the other company, what is best? Is it stupid to reuse the same private sign key, should I create a new one that I use for their app? Obviously I need to create new certs and all that for them, but how should I think when it comes to the sign key?


(Maybe relevant: It is not likely, but it might be possible, that they will take over the development of their app. For the time being, I'm doing updates etc for them.)
 
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