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Facebook to Fight Revenge Porn by Letting Potential Victims Upload Nudes in Advance
Submitted via IRC for TheMightyBuzzard
This new protection system works similar to the anti-child-porn detection systems in use at Facebook, and other social media giants like Google, Twitter, Instagram, and others.
It works on a database of file hashes, a cryptographic signature computed for each file.
Facebook says that once an abuser tries to upload an image marked as "revenge porn" in its database, its system will block the upload process. This will work for images shared on the main Facebook service, but also for images shared privately via Messenger, Facebook's IM app. Potential victims will need to upload nude photos of themselves
The weird thing is that in order to build a database of "revenge porn" file hashes, Facebook will rely on potential victims uploading a copy of the nude photo in advance.
This process involves the victim sending a copy of the nude photo to his own account, via Facebook Messenger. This implies uploading a copy of the nude photo on Facebook Messenger, the very same act the victim is trying to prevent.
The victim can then report the photo to Facebook, which will create a hash of the image that the social network will use to block further uploads of the same photo.
This is possible because in April this year, Facebook modified its image reporting process to take into account images showing "revenge porn" acts.
Facebook says it's not storing a copy of the photo, but only computing the file's hash and adding it to its database of revenge porn imagery.
Victims who fear that former or current partners may upload a nude photo online can pro-actively take this step to block the image from ever being uploaded on Facebook and shared among friends.
We won't be doing this. I don't even want to see hashes of you folks naked.
Facebook asks Australians to send nude photos, for safety
"Worried that an ex-boyfriend or girlfriend might post your intimate photos on the internet? Facebook says it has a solution – as long as you'll hand over the photos first.
The social media giant recently announced its new plan to combat "revenge porn," when individuals post nude photos online without the consent of the subject." http://www.foxnews.com/tech/2017/11/08/facebook-says-it-needs-your-explicit-photos-to-combat-revenge-porn.html
(Score: 1, Insightful) by Anonymous Coward on Friday November 10 2017, @06:39PM
fappening 2: electric boogaloo!
(Score: 0) by Anonymous Coward on Friday November 10 2017, @06:49PM
FaceBook Incorporated
(Score: 0) by Anonymous Coward on Friday November 10 2017, @07:08PM (2 children)
Truly, this is the last generation of actual 'clean' people who will be able to run for office. From this point onward, any candidate opposed by FB will have their private (pun intended) info selectively leaked. No-one will be able to get elected anymore except for the incumbent and their presumptive heirs that will run unopposed.
Thanks FB, thanks Zuck... you should be proud of yourself (but then again, I'm sure you are)
(Score: 2) by takyon on Friday November 10 2017, @07:59PM (1 child)
Nah. The electorate will just adapt to not care about typical scandals anymore, just like how they elected a pussy groper.
[SIG] 10/28/2017: Soylent Upgrade v14 [soylentnews.org]
(Score: 2, Informative) by Anonymous Coward on Friday November 10 2017, @08:22PM
Well to be fair, he was running against the worst candidate for the office in the history of the country. Who only managed to get the nomination by bribing the party itself to rig things in her favor.
A ham sandwich probably would have beaten her.
(Score: 2) by crafoo on Friday November 10 2017, @07:38PM (1 child)
Review your photos...
Not post a native application to generate hashes of your photos and store your hashes.
Rocket geniuses, status confirmed.
(Score: 2) by JNCF on Friday November 10 2017, @08:18PM
Native app not needed, this can be done in a browser. Objections to doing the hash client-side it are in at least two threads above (facebook is doing human review prior to hashing, to keep out non-porn).
(Score: 2) by c0lo on Friday November 10 2017, @09:41PM (1 child)
A good hashing algo will switch 50% of its bits for every bit flipped in input [wikipedia.org].
If two inputs aren't bit-to-bit identical, the hashes will look quite far away on from the other.
Or... we are not speaking about crypto-hashes here?
https://www.youtube.com/@ProfSteveKeen https://soylentnews.org/~MichaelDavidCrawford
(Score: 3, Informative) by takyon on Saturday November 11 2017, @01:37AM
Images tend to change a lot as they get uploaded from place to place. I would assume they are not relying on crypto hashes, although they might do both.
https://realpython.com/blog/python/fingerprinting-images-for-near-duplicate-detection/ [realpython.com]
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