Sweeping New Powers Could Let the UK Block Big Tech Platforms
Meta’s WhatsApp messaging service, as well as the encrypted platform Signal, threatened to leave the UK over the proposals.Ofcom’s proposed rules say that public platforms—those that aren’t encrypted—should use “hash matching” to identify CSAM. That technology, which is already used by Google and others, compares images to a preexisting database of illegal images using cryptographic hashes—essentially, encrypted identity codes. Advocates of the technology, including child protection NGOs, have argued that this preserves…