Questions about Jolla C2 and SailfishOS

That’s not basic, that’s misguided.
Given the other possible problems above, it would not achieve much and thus be nowhere near the top of the list. Surely the silly apps are a much bigger vector than some open WiFi. So as long as you still insist on using them, it’s a lost cause.
WiFi clients also already broadcast requests for SSIDs they have config for to make scanning more responsive. You’d need to nuke that too.

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