This will keep happening until they enable e2e. I’ve had Facebook block several links sent in private message groups, to completely legal and safe sites (Messenger prints out an obscure API error and refuses to send the content). They have done this for a long time.
Facebook crawls links in PDFs you send in Messenger
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Re: Facebook crawls links in PDFs you send in Messenger
#102Re: Facebook crawls links in PDFs you send in Messenger
#103Re: Facebook crawls links in PDFs you send in Messenger
#104Earlier quoted context omitted.
Other guy was right. Think about this easy scenario If (E2E_ENABLED) { SkipCrawler(); SkipContentChecks(); }
Again, it isn't to prove the encryption works, it is only a test that could prove that it doesn't work.
Re: Facebook crawls links in PDFs you send in Messenger
#105Sidenote i wonder why FB doesnt launch a search engine since they crawl most of the web anyways
Re: Facebook crawls links in PDFs you send in Messenger
#106This will keep happening until they enable e2e. I’ve had Facebook block several links sent in private message groups, to completely legal and safe sites (Messenger prints out an obscure API error and refuses to send the content). They have done this for a long time.
Worth noting WhatsApp also provides link previews now. Although it is supposedly e2e communication, the link previews are likely generated by reaching out to a similar facebook unfurl service. They can then have a single map of phone num -> links rendered between fb and whatsapp.
The only conclusion: it takes a little time for a file that's flagged - based on its language - to pass the scanners?
Re: Facebook crawls links in PDFs you send in Messenger
#107Earlier quoted context omitted.
Same can be done if e2e is enabled. Nothing prevents Facebook from sending links from client to a "validation" service. They do this already in WhatsApp for instance.
Maybe I'm being foolish, but isn't the point of e2e that Facebook wouldn't even know what you were sending (a link or otherwise), it being encrypted in flight?
It's better than no encryption, but not what technical people usually mean by e2e encryption
Re: Facebook crawls links in PDFs you send in Messenger
#108Sidenote i wonder why FB doesnt launch a search engine since they crawl most of the web anyways
That would let people leave the Facebook platform and explore the open web.
EDIT: Actually they already did, it's called Facebook Instant Articles.
Re: Facebook crawls links in PDFs you send in Messenger
#109Earlier quoted context omitted.
I remember the sheer awe when I first learned there was a huge open web outside of AOL. I'm sure people nowadays are aware of the rest of the web, but if the draw is minimal, they will likely get stuck in the same loops of well-trodden space.
A lot of the same people who kept that AOL walled garden alive, just migrated to Facebook. To them Facebook is the web, the restaurants they like are there, the tired celebs they worship are there and whatever crazed conspiracy theories someone told them at work or at church are under Facebook News. It's comfortable and I agree with you and like how you phrased it as "the same loops of well-trodden space."