One disappointing development from a larger perspective is that many privacy-preserving technologies (multi-party computing, homomorphic encryption, hardware en

One disappointing development from a larger perspective is that many privacy-preserving technologies (multi-party computing, homomorphic encryption, hardware enclaves, etc) are actually getting used to build tools that undermine once-airtight privacy guarantees. E2E starts to become… whatever this is. A more recent example is how private set intersection became an easy way to get contact tracing tech everywhere while maintaining an often perfunctory notion of privacy. I wonder where large companies will take this next. It behooves us cryptography/security people who actually care about not walking down this slippery slope to fight back with tech of our own. This whole thing also somewhat parallels the previous uses of better symmetric encryption and enclaves technologies for DRM and copyright protection.