Reminds me of an article I read yonks ago about a hacker sending the cops a pic of his girlfriend’s goodies with a caption like “suck it”, only for this super duper hacker not to realise the photo has location information saved in the metadata.
On Thu, 23 Jan 2020 at 14:46, <adr...@halid.com.au> wrote: > > > You can share your phones contact list with Facebook. > > > > What this means is that even if you have never used Facebook before, one > of your friends could have shared your details (name, phone, email) to > Facebook because they have chosen to provide/sync their phonebook/contact > list with Facebook. > > > > Now Facebook knows who you are and you haven’t even signed up or logged > into Facebook ever. > > > > > https://www.vox.com/2016/10/1/13079770/how-facebook-people-you-may-know-algorithm-works > > *Does Facebook use my phone contacts to make friend recommendations?* > > *Yes. If you share your phone contacts with Facebook or Facebook > Messenger, the company will use that info to recommend your contacts as > “Friends you may know.” Timing is a factor here. That means that you may be > more likely to see a friend recommendation from someone you recently added > to your phone, versus a contact you’ve had for years.* > > *Do both parties need to be saved into each other’s phones?* > > *No. If someone has added your number to their contact list, you might see > them in your suggested friends list even if you’ve never added their number > to your own contact list. It only takes one user to trigger a > recommendation.* > > > > > > What might be even more worring to you is Facebooks facial recognition AI. > > > > Imagine that someone that you don’t know takes a photo and your face > happens to be in the background. > > Facebook can match all the faces in the photo, including yours, and link > it to your Facebook profile. > > Essentially now they have a record of the location and exact time you were > there because somebody else uploaded a photo. > > > > > > Regards > > > > Adrian Halid > > > > *From:* ozdotnet-boun...@ozdotnet.com <ozdotnet-boun...@ozdotnet.com> *On > Behalf Of *Greg Keogh > > > *Sent:* Thursday, 23 January 2020 2:33 PM > *To:* ozDotNet <ozdotnet@ozdotnet.com> > *Subject:* [OT] What Facebook knows > > > > Folks, most of us probably know what I'm about to say, but when you see it > live, it's really frightening. > > > > My wife had to join Facebook for the first time ever to follow her nephew > who is a firefighter in the ongoing disaster. She joined okay without being > asked for a phone number. The next day she tried to get in via the Apple > App and it demanded a mobile number. It was an absolute block until a > number was entered, so she was compelled to. Now it gets scary... > > > > She immediately was offered hundreds of friends that included my friends, > musicians I have played with, her old work mates in jobs going back 40 > years, extended family adult and children friends of both sides of our > family, old workmates of mine going back to the 1980s, etc, and the list > goes on to find obscure and tenuous links of every imaginable kind. > > > > So … given that she has never been on FB before … where did all those > associations come from? We know they have good algorithms of course, but it > means that FB could be used to perform a comprehensive and reliable > analysis of the complete life of someone who isn't even a member. Imagine > if the police, or criminals, or an oppressive government simply asked FB > "what do you know about person X?" Even if X isn't a member, they could > compile a fantastically detailed dossier. > > > > How much information does FB hold? Who are they sharing it with? It's > worse than we think. > > > > *Greg K* >
