[2000UltraDeluxe]

Last time I checked, the preferred method was to simlify known CSAM material enough that you can hash the result, then repeat in the client end and hope nothing else has the same hash.

[palata]

Which makes it even less of a problem than what people say. I see that as an argument in favour of ChatControl. If it really "just" compares hashes locally, then the claims that it breaks encryption is even more wrong.

[westmeal]

But how is this supposed to protect children if say an abuser takes pictures or videos of the victim?