No amount of "security" is enough for an actor who wants to do this and has privileged to the data. This is almost impossible to out-engineer, if you think a company like Twitter cannot solve "such an easy problem" you're being naive.
Not really sure what your point is. I did read the article. I didn't comment on TikTok, which would be legally required (and I am sure compliant, although they deny that in the article) to hand data over to the Chinese government. I commented on Twitter, which was hacked by amateurs, and absolutely could have been considerably harder as a target.
My point is, you only need a rogue CTO (most of which have no actual idea of how technology works, i.e. an amateur) and it's over; or you know, any of the 10,000s of engineers currently employed on your favorite FAANG company.
