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Help me figure out how I lost this bet to an engineer

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Re: Help me figure out how I lost this bet to an engineer

#141
post #78

Earlier quoted context omitted.

I'm pretty confident it would have, but we ultimately "stopped" it after getting the answer confirmed, so I can't say with 100%.

So you stumbled on a piece of information which proved useful, notwithstanding that you didn't intend to look for. If Justin observed correctly, you guys were very impressed with yourselves. Had you retrieved the answer by methods of which you were confident, you would've still been impressed, but not greatly.(I'm making a lapse conjecture here, of course) Since you were confident that you would be able to find her,…

This teasing is too much. Now I'm hooked like it's a spy novel.

Re: Help me figure out how I lost this bet to an engineer

#143
post #34

Earlier quoted context omitted.

The same two engineers who found out who she was? :-) Seriously: given your story, if, say, they are colleagues, too, they may be in on it, and lie to you about the EXIF data (if they _are_ engineers, they certainly lied; how can there ever be 'nothing interesting' in EXIF data :-)?) Most of the time, the simple answer is the likely one. My money is on the high school-yearbook line, but it might have been anything (d…

> how can there ever be 'nothing interesting' in EXIF data :-)?) If one strips all of the metadata a photo, or replaces it with metadata from another photo, or makes up some bogus metadata.

"If one strips all of the metadata a photo"

A photo without EXIF data? Someone must be trying to hide something from me. Let's see how good he is, and check whether there still are parts of the file with metadata in the disk's free blocks.

"or replaces it with metadata from another photo"

A Nikon F5 at f/5.6 and 1/100s? No way! If so, that car must have done a thousand kilometers an hour or so. Also, the aberration looks more like that of an Canon lens, but I'm not 100% sure of the model. I wonder whether it is possible to train a model on the 'JPG to camera model' problem.

"or makes up some bogus metadata."

Hm, I thought the Eiffel Tower clone in Japan was in Shanghai. The GPS coordinates seem to indicate that Tokio has one, too. Let's google to check that.

OK, that's more for the hacker engineer, but I thought one would not have to make that explicit on HN.

Re: Help me figure out how I lost this bet to an engineer

#144

Earlier quoted context omitted.

This is the closest I've heard to one of the ideas that we expected to work, so I'll share. - Create an ad on Facebook with her picture. - Target people that went to her high school within 4 years of the range of years we thought she graduated within. Was only a few hundred people so the cost of running the ad would likely only be a few bucks. - The ad copy / landing page just needed to be convincing that we weren't…

Did that picture by include any kind of hint of a company she is working for?

No, there was no hint about what company she worked for. And she didn't apply to work at Elastic / Close.io either

Re: Help me figure out how I lost this bet to an engineer

#145

I'm the engineer he's referring to. I still get a laugh seeing Justin's amazement when we told him her name. To answer a few questions... - This isn't the actual photo but looks similar, except that she was alone. Justin was afraid of reposting the same photo after the results of handing over a photo last time :) - There was no useful exif data in the image. - We knew her high school and approximate age in Austin, bu…

Did she "check in" at the bar with FourSquare?

Re: Help me figure out how I lost this bet to an engineer

#146

Is it just me or is this spectacularly creepy? "I bet you can't cyber stalk my friend! I bet you we can!" I could understand if this was at defcon or a security/privacy related conference and all parties involved were in the field, but just cyber stalking some random woman? What's the point?

No, it's not just you. It's spectacularly creepy, lacking reflection _and_ a thinly disguised ad for their site/product ("look, our engineers are fucking evil geniuses! Amazing."). And of course, like others already have said, HN fell for it.

This stuff should worry you, not be lauded as some kind of amazing engineering feat. 4chan does this all the time and they call it doxxing.

Re: Help me figure out how I lost this bet to an engineer

#147
post #54

I wonder what the resolution of the original image was? The inside of her thumb is visible through the glass, so with enough detail it might be possible to record her thumb print. Even if you could do that, though, odds are against her print being present in any publicly-available database.

Congrats on having the most far fetched idea of all of the ones posted here :)

Re: Help me figure out how I lost this bet to an engineer

#148
post #45

I'm the engineer he's referring to. I still get a laugh seeing Justin's amazement when we told him her name. To answer a few questions... - This isn't the actual photo but looks similar, except that she was alone. Justin was afraid of reposting the same photo after the results of handing over a photo last time :) - There was no useful exif data in the image. - We knew her high school and approximate age in Austin, bu…

A few ideas come to my head. * Everyone was at the original bar at the same time - someone else had photos from the night that had her and other people in them, and those people (her friends) could be found online. * The bar had some kind of "sign-up for x" list, or some kind of contest, or some kind of photos of the night, which were helpful. * You searched twitter/facebook/whatever for a girl posting about a boy sh…

If it were me, the first thing I would do knowing her high school is create a Facebook account and upload her photo (with her face) and see who Facebook suggests I tag in it.

I'm not sure what the rules are concerning tagging suggestions, but I have noticed that it suggests that I tag people I know in other people's photos so you KNOW they recognize everybody in every photo - the trick is meeting the right conditions for it to allow it to share that recognition match with you based on her privacy settings I think...

Re: Help me figure out how I lost this bet to an engineer

#149
post #139

Earlier quoted context omitted.

Or, have some faith in humanity, considering: - This was just a fun bet between friends. Justin really didn't think it could be done and I wanted to show him how a little information goes a long way online. - Justin treated this girl well and she even knew about this bet. - "Look up online" != Stalking - None of the discovered information has been posted publicly online. This isn't even her photo.

When I told her about the bet she laughed and took it all in stride. She thought it was funny.

Did you tell her about it/get her permission beforehand? Or did she say something when you met her that indicated it would be okay? If so, great. If not, this is still in the creepy / douche canoe area and the fact that she happened to be okay with it after the fact doesn't really change that.

Re: Help me figure out how I lost this bet to an engineer

#150
post #33
post #22

How are you surprised that they did it when they knew what high school she went to? Two possibilities: Option 1: Step 1) Find copies of yearbooks going back a few years, 2) find her face in the yearbook. Option 2: Step 1) Search facebook for people who went to the same high school as she did in the probable time frame. 2) Look for her in that set, or in the set of friends that the people who matched the search have.…

They knew what high school because it was a slip up. If you knew these guys, they aren't the kind who would just sit there and look at pictures. They had some software running. FYI, I am a sales guy...not an engineer

> If you knew these guys, they aren't the kind who would just sit there and look at pictures.

As someone who has been a software developer for quite a long time, this statement makes a big assumption.

A good software developer knows it is often far easier and faster to flip through a couple of hundred photos and process them with your meat-brain rather than write a one-off bit of software to do the matching, even if you start from an existing base like OpenCV or whatever.

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