You're falling for the exact same fallacy as the dipshits in the article fell for. The FBI was selling the ANØM "service" for $4000 per phone per year.
That's a couple orders of magnitude below the bar of what I am referring to.
I agree, if you're a person with a serious targeted privacy threat, and you think there's a magic bullet, you're kidding yourself. Any serious data privacy solution is going to involve a ton of associated meatspace solutions beyond buying one SKU and calling it done.
