One Bad Apple
Given that the weights for the NeuralHash algorithm are being shipped to every iOS device and neural network adversarial attacks are pretty well studied in literature, it should be trivial to make a website or Android camera app that tweaks a few pixels of an image to make it have a hash collision with apple's CSAM database. If anyone seriously wants to kill this initiative, widely distributing a few memes with hash collisions could go a long way.