Live data from Hacker News

Post a boarding pass on Facebook, get your account stolen

michalspacek.com

91–100 of 313 posts

Re: Post a boarding pass on Facebook, get your account stolen

#91

>"When you want to brag about your final destination, be careful of what you post on Facebook and Instagram. Leave your boarding passes (and other barcodes) for yourself (and get a shredder)." It's funny that for a piece intended to warn other's on identity security the author had no problem reproducing the the unredacted boarding pass picture in question, which incidentally also tells us that he is a member of the O…

There isn’t a Oneworld club.

With Oneworld you can only join individual airline’s loyalty program (I think he’s in the BA one judging by the BASILV). Then all the airline programs in the Oneworld alliance have a mapping between their tiers and the Oneworld set, so you can work out the equilivalence between airlines. So a Qantas Gold teir maps to BA’s silver tier and get the same perks on each other’s airlines (BA has Blue, Bronze, Silver, Gold and Qantas has Bronze to Platinum, hence the difference).

‘Club World’ is what BA call their business class.

But your point still stands, be definitely should have at least obscured his frequent flyer membership number...

Re: Post a boarding pass on Facebook, get your account stolen

#92
post #66

Earlier quoted context omitted.

Aztec is more compact than QR - does not need margin and because it's optimised for lowercase letters (used a lot for urls). Also has tunable error correction.

Doesn't the QR standard allow lowercase via hex and have a miniature version? I know it has error correction, but I'm not sure if it is tunable. I know it can embed kanji, so it seems odd that lowercase would be much of a problem? Thanks! I am pretty grateful I'm not tasked with implementing these.

QR codes have variable-level error-correction, from 7-30%.

https://en.wikipedia.org/wiki/QR_code#Error_correction

Re: Post a boarding pass on Facebook, get your account stolen

#93
post #11

And this is also why I almost never give my real birth date when registering on websites (except on financial websites or websites where I'm legally obligated to) and I never ever give real answers to the security question.. My typical answer for a security question is something like "39arsrc uyrsrsaulsr8832r" and that's saved in a password manager Security questions weakens the security of an account, they are easil…

"Your mother's maiden name has numbers in it?" (bank teller, DMV person, etc.) "You .. give real answers for your security questions? Seriously?" I do the same thing, real birthday if it's financial or employee related, but for everything else, I'm a few years older on another date. I often pick a security question that I don't have a real legit answer to as well.

I never quite got this "mother's maiden name" thing. Isn't your mother's maiden name... your mother's current name, minus the extra surname she got when she married? Why is this treated as a hard-to-discover information?

Re: Post a boarding pass on Facebook, get your account stolen

#95

>"When you want to brag about your final destination, be careful of what you post on Facebook and Instagram. Leave your boarding passes (and other barcodes) for yourself (and get a shredder)." It's funny that for a piece intended to warn other's on identity security the author had no problem reproducing the the unredacted boarding pass picture in question, which incidentally also tells us that he is a member of the O…

There isn’t a Oneworld club. With Oneworld you can only join individual airline’s loyalty program (I think he’s in the BA one judging by the BASILV). Then all the airline programs in the Oneworld alliance have a mapping between their tiers and the Oneworld set, so you can work out the equilivalence between airlines. So a Qantas Gold teir maps to BA’s silver tier and get the same perks on each other’s airlines (BA has…

Sorry yes I meant alliance not club at any rate the ticket says Saphire for One World which lets you know their frequent flyer status:

https://www.oneworld.com/ffp/my-oneworld-tier-status/-/tiers...

Re: Post a boarding pass on Facebook, get your account stolen

#96

Just to clarify in case someone assumes the same thing I did from the headline: it isn't the Facebook account that gets stolen, but the airline website account.

It seems the attacker/pen-tester got access to the guy's passport number. I wonder how easy it would be to do identify theft and gain entry into other accounts.

Re: Post a boarding pass on Facebook, get your account stolen

#97
post #50

I am not a lawyer, but I think most of the author's actions would be considered illegal in the US. While he didn't do any harm, his actions were still probably a violation of at least the CFAA. Anyhow, Aztec code? It looks, the one on the watch, pretty much like a QR Code. I've never seen the Aztec code before today. It makes me wonder how many of these barcode things we really need. A quick Google didn't reveal any…

Aztec is more compact than QR - does not need margin and because it's optimised for lowercase letters (used a lot for urls). Also has tunable error correction.

qrcode has tunable error correction (7, 15, 25 or 30% recovery via reed-solomon).

Re: Post a boarding pass on Facebook, get your account stolen

#98
post #87
post #6

It's amazing that with the algorithmic power Facebook brings to bear on every photo you upload, finding faces etc., that they can't spare a few cycles for security. It would be simple to run barcode detection over any post and blur the result (maybe prompt the user just in case they actually wanted to post one?). Almost any barcode is assumed to be private information, even a barcode on a store receipt can be used fo…

> Almost any barcode is assumed to be private information Wouldn't the most common barcode be the EAN-13, which is not private information?

Most common? Yes, almost certainly. Most commonly posted in photos? I don't know (Facebook could know).

Re: Post a boarding pass on Facebook, get your account stolen

#99
post #93

Earlier quoted context omitted.

"Your mother's maiden name has numbers in it?" (bank teller, DMV person, etc.) "You .. give real answers for your security questions? Seriously?" I do the same thing, real birthday if it's financial or employee related, but for everything else, I'm a few years older on another date. I often pick a security question that I don't have a real legit answer to as well.

I never quite got this "mother's maiden name" thing. Isn't your mother's maiden name... your mother's current name, minus the extra surname she got when she married? Why is this treated as a hard-to-discover information?

In the US and other countries it's common for a wife to take her husband's last name.

Changes from "Jane Doe" to "Jane Smith"

Re: Post a boarding pass on Facebook, get your account stolen

#100
post #50

I am not a lawyer, but I think most of the author's actions would be considered illegal in the US. While he didn't do any harm, his actions were still probably a violation of at least the CFAA. Anyhow, Aztec code? It looks, the one on the watch, pretty much like a QR Code. I've never seen the Aztec code before today. It makes me wonder how many of these barcode things we really need. A quick Google didn't reveal any…

Aztec is more compact than QR - does not need margin and because it's optimised for lowercase letters (used a lot for urls). Also has tunable error correction.

> because it's optimised for lowercase letters (used a lot for urls).

Case does not matter for URLs, HTTP://NEWS.YCOMBINATOR.COM will work perfectly, and can be encoded using qrcode's alphanumeric mode.

Aztec is slightly more efficient regardless, but not by much: qr alpha is 5.5 bits symbol, Aztec is 5 bits per symbol.

Post reply on HN