Far from being blasé about consumer privacy, most tech companies apps and startups are, in my experience, hyper focused on protecting privacy. They, however, lack practical guidance for assessing the ...

Let's say I have no more than a few hundred UUIDs, the set of which will only be updated rarely. Let's furthermore say I want to, at runtime, check if an arbitrary UUID belongs to said predefined set.

5 seconds in google tells me that you can call Access with the "/compact" command line switch. Also, there's a KB article at support.microsoft.com that give further details.