They went into this in more detail in 2019: https://www.eff.org/deeplinks/2019/11/why-adding-client-side-scanning-breaks-end-end-encryption https://www.eff.org/

They went into this in more detail in 2019: https://www.eff.org/deeplinks/2019/11/why-adding-client-side-scanning-breaks-end-end-encryption https://www.eff.org/deeplinks/2019/11/why-adding-client-side...