Facebook is on the edge of implementing a disastrous decision. It must change its mind. wp.me/p16n9D-2yH
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Security, privacy & safety form the three legs of the stool. When 1 key pillar is undermined, the stool falls over. E2E encryption may be the direction but what steps are being taken to continue the fight against online child exploitation & to ensure that battle isn’t undermined?
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The challenge is you want airtight E2E encryption for activists and journalists operating in repressive countries, but that makes it more difficult if you rely on surveillance to combat criminal activity. Yet surveillance capabilities can be compromised by foreign adversaries.
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I don’t think any of those imperatives are being questioned in @John1912’s blog - there is always going to be a question of balance. This particular ? is about all the work that has been done with PhotoDNA & other image matching technologies to detect & surface CSE.
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Replying to @tweetinjules @johnc1912 @john1912
Keep in mind that John cited takedown numbers from closed Facebook groups. That’s on the main platform and isn’t getting E2E encryption. I don’t know how many pictures are sent via Messenger, but FB could still capture hashes and send with encrypted message for detection.

Jun 25, 2019 · 8:57 PM UTC

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Replying to @bilcorry @tweetinjules @john1912
I believe the vast majority come from Messenger
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It could be, the Facebook press release is vague and only refers to removing content from “Facebook” and the BBC article called out secret FB groups, which made me think it was concentrated there.
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Replying to @bilcorry @johnc1912 @john1912
There are known @WhatsApp paedophile groups & in fairness to them, @eSafetyOffice have raised these concerns & they are willing to think about how these risks can be mitigated-but that’s why #SafetybyDesign is so fundamental in this instance-the lives of abused kids are at stake!
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