Slashdot Mirror


Researcher Finds Way To Steal Cash From Google, Instagram, and Microsoft Through The Phone (onthewire.io)

Trailrunner7 quotes a report from On the Wire: A security researcher has discovered a method that would have enabled fraudsters to steal thousands of dollars from Facebook, Microsoft, and Google by linking premium-rate numbers to various accounts as part of the two-step verification process. Arne Swinnen discovered the issue several months ago after looking at the way that several of these companies's services set up their two-step verification procedures. Facebook uses two-step verification for some of its services, including Instagram, and Google and Microsoft also employ it for some of their user accounts. Swinnen realized that the companies made a mistake in not checking to see whether the numbers that users supply as contact points are legitimate. "They all offer services to supply users with a token via a computer-voiced phone call, but neglected to properly verify whether supplied phone numbers were legitimate, non-premium numbers. This allowed a dedicated attacker to steal thousands of EUR/USD/GBP," Swinnen said in a post explaining the bug. "For services such as Instagram and Gmail, users can associate a phone number with their accounts," reports On the Wire. "In the case of Instagram, users can find other people by their phone number, and when a user adds a number, Instagram will send a text to verify the number. If the user never enters the code included in the text, Instagram will eventually call the number. Swinnen noticed that Instagramâ(TM)s robocallers would call any number supplied, including premium-rate numbers. 'One attacker could thus steal 1 GBP per 30 minutes, or 48 GBP/day, 1.440 GBP/month or 17.280/year with one pair. However, a dedicated attacker could easily setup and manage 100 of these pairs, increasing these numbers by a factor 100: 4.800 GBP/day, 144.000 GBP/month or 1.728.000 GBP/year.'"

35 comments

  1. Dupe by Anonymous Coward · · Score: 0

    Do you even look at the front page of your own website to see if a story has been posted recently?

    1. Re:Dupe by BarbaraHudson · · Score: 4, Funny

      Do you even look at the front page of your own website to see if a story has been posted recently?

      You must be new here.

      --
      "Transparent" is a shit show that trades on every stereotype going. A man in drag is NOT a transsexual.
    2. Re:Dupe by Anonymous Coward · · Score: 0

      You're # is 3,785,311. You're also new-ish.

    3. Re:Dupe by mfh · · Score: 1

      Heh.

      --
      The dangers of knowledge trigger emotional distress in human beings.
  2. Dupe by Anonymous Coward · · Score: 0

    https://it.slashdot.org/story/16/07/18/157259/hacker-uses-premium-rate-calls-to-steal-from-instagram-google-microsoft

  3. That's strange by Anonymous Coward · · Score: 3, Funny

    Another researcher discovered the same thing about four Slashdot stories ago.

    1. Re:That's strange by Anonymous Coward · · Score: 0

      Ironic that this came from BeauHD. He's always scouring the front page for other stories to link to (related or not) in order to generate more ad revenue. Maybe we're witnessing the evolution of his desperation in real time.

    2. Re:That's strange by Anonymous Coward · · Score: 0

      Putting the "re" in "research"

  4. Click bait by 110010001000 · · Score: 1

    The story explains how the proof of concept exploit could work. It is tedious and was not likely to be used by sane people. The guy was awarded $2000 for discovering the loophole.

    1. Re:Click bait by Anonymous Coward · · Score: 0

      The story explains how the proof of concept exploit could work. It is tedious and was not likely to be used by sane people.

      It seems to me that the potential to collect more than 4,000 pounds (nearly 2 metric tonnes) per day would entice a lot of people. Apparently criminals are getting lazier and less clever.

    2. Re:Click bait by Cruciform · · Score: 1

      A year or two ago there was a fellow that made the news for doing the same thing to phone scammers. He set up a premium number and would redirect them to that.

  5. How much to do this legally? by 110010001000 · · Score: 3, Interesting

    As in, I would love to get a phone number that is 'premium' and then give it out to every website that keeps asking for a phone number.

    Slime keep trying to steal my privacy in exchange for nothing. They abuse the phone number and have no business asking for it. If they want my phone so badly, then PAY every time you call me. After all, I never want you to call me, so why shouldn't you pay to talk to me?

    1. Re:How much to do this legally? by lakeland · · Score: 3, Informative

      US Premium numbers are no longer available. UK numbers are easily available - register at http://www.phonepayplus.org.uk...

      Note that you would be breaching the ToS for your premium number - they require you to notify all 'customers' that they're calling a premium rate number. So while it's easy to set up, I think you'd be cut off pretty quickly too.

    2. Re:How much to do this legally? by Opportunist · · Score: 1

      Don't worry, I'll include it in that omnipresent "tell us what you think of us" or "is there anything you'd like to tell us" field. That way we'll finally get to see whether someone actually reads it.

      --
      We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
    3. Re:How much to do this legally? by rudy_wayne · · Score: 1

      As in, I would love to get a phone number that is 'premium' and then give it out to every website that keeps asking for a phone number.
       

      Other than Google, which keeps nagging me to connect a mobile phone number to my account, I can't remember any websites asking for a phone number.

    4. Re:How much to do this legally? by rudy_wayne · · Score: 1

      US Premium numbers are no longer available.

      I was wondering why there was no mention of US numbers and as I was reading the article it occurred to me that I hadn't seen any ads for services using a premium number in quite some time. I have to say, I'm quite surprised that all those "pro-business" politicians out there allowed premium numbers to be banned.

    5. Re:How much to do this legally? by GrumpySteen · · Score: 1

      Just give them one of the many rejection line numbers. It's probably the most suitable use those numbers will ever get.

    6. Re:How much to do this legally? by lakeland · · Score: 1

      I was thinking the same thing and just did a bit of reading (http://www.imediaconnection.com/articles/ported-articles/blogs/2012/dec/verizon-announces-end-of-900-number-billing/).

      It looks like the only thing politicians did to kill it was ban phone sex. It was mainly killed by greedy, incompetent carriers.

    7. Re:How much to do this legally? by Anonymous Coward · · Score: 0

      I was thinking the same thing and just did a bit of reading (http://www.imediaconnection.com/articles/ported-articles/blogs/2012/dec/verizon-announces-end-of-900-number-billing/).

      It looks like the only thing politicians did to kill it was ban phone sex. It was mainly killed by greedy, incompetent carriers.

      Just to be clear, phone sex is not banned per se, you just need to accept payment methods other than "900" numbers. This too has become more difficult because credit card payment processors are less likely now to do business with these types of businesses due to chargebacks and the like. Of course phone sex has probably become a much less lucrative business with the rise of widely available broadband, all manner of porn and cam websites, and Tinder and other hookup tech, as well as the demise of 900 numbers, which were shady in and of themselves. (For the record, I'm not involved in that type of business, but I do know some things about the evolution of modern payment systems, so I'm speaking from that angle, not as someone interested in dirty talk with an anonymous liar. Really.)

    8. Re:How much to do this legally? by Zaelath · · Score: 1

      Google, LinkedIN, Facebook, Amazon, many many many others that won't allow you to create an account without one, particularly as part of shipping information.

    9. Re:How much to do this legally? by Anonymous Coward · · Score: 0

      if you don't abuse their verification system to call you constantly, then it's on them definitely.
      however, only 1gbp per 30 mins? da fuq? I would have thought to use 1 eur per one minute line.
      also it is preeetty likely that their robocall blocks(or service they buy to do it) doesn't work with premium numbers in most countries.

    10. Re:How much to do this legally? by 140Mandak262Jamuna · · Score: 1

      (For the record, I'm not involved in that type of business, but I do know some things about the evolution of modern payment systems, so I'm speaking from that angle, not as someone interested in dirty talk with an anonymous liar. Really.)

      Wow! Even anonymous cowards do not want to be mistaken for phone sex callers...

      --
      sed -e 's/Chuck Norris/Rajnikant/g' joke > fact
  6. The original story didn't attract many comments by mspohr · · Score: 1

    It looks like they're posting it again to see if they can drum up more ennui.

    --
    I don't read your sig. Why are you reading mine?
  7. Not news by 110010001000 · · Score: 1

    We had same thing in Russia around 12 - 11 years ago when there were the WAP and premium content craze. There was a guy from carders.su who wrote an MMS exploit that hacked Sony cellphones on A100 OS and made them send premium sms in 2006. The whole Megafon cell network went down as it got DDOSed by the chain reaction of the virus spreading

  8. same day? by Anonymous Coward · · Score: 0

    Dupe on the SAME DAY. At least it was from different editors. We know that BeauHD didn't read the headlines from earlier in the day.

    1. Re:same day? by Anonymous Coward · · Score: 0

      Based on history, i believe "BeauHD" is actually a very poorly written bot, since its unlikely that an actual human is that retarded.

    2. Re: same day? by Anonymous Coward · · Score: 0

      Wrong, BeauHD is plenty retarded.

  9. Proof of concept a reach sometimes by Anonymous Coward · · Score: 0

    If every proof of concept was actually a threat nobody would use the internet. At least not keep any personal information on it. Rather then telling people how safe their information. Better just fess up and say, you know we will be hacked someday. It's just a question of when not if. But you can reduce your risk by not having a account with us and just enter in your information and selecting don't save me. Sadly, we are akin to the laziness of just storing all our information.

  10. God damn Ruskies by Anonymous Coward · · Score: 0

    First, they cheat in the olympics. The fucking olympics! THen they fucking cheat Microsoft! Fucking Microsoft! One thing left to do. NUKE 'EM! NUKE 'EM NOW!

  11. 1.728? by Anonymous Coward · · Score: 0

    Wow that is awfully low. $1.728 is chump change to these companies.

    Oh Wait, this os probably the DUMB countries that have no idea what a DECIMAL POINT IS FOR.

    Honestly, stop the idiotic trend. Your countries USED TO do math properly at one time with the Decimal point used properly!

  12. Dupe... by Anonymous Coward · · Score: 0

    Lets see how many dupe posts we can post on this dupe post...

  13. Re: The original story didn't attract many comment by Anonymous Coward · · Score: 0

    Reposts will occur until readership improves!

  14. nike tn 2016 pas cher Femme by zhenyulian · · Score: 0

    operating all around in footwear that nike tn 2016 don't forget acquiring their initially pair of "waffle soles" way back again in the mid-1970s. What is also for sure is that this distinct pair of Nikes bears no resemblance in any way to people pioneering footwear.A certain favourite of the skateboard arranged, the Nike Air Max TN arrives in a vast selection of appears, which include an individual pair that sports a skeleton. Now that is a style that is guaranteed to be welcome at some of the finest eating establishments in Manhattan or Beverly Hills, perfect? Common black/white and a great skeleton motif can not only look and feel fairly very good in these sneakers but also at some point develop into rather very good at whatever it is they imagine they could want to do in them. As far as definitely memorable color combinations, the a short while ago-launched Orange/Black/Red shoe has definitely created an effect amongst the glitterati in Hollywood.

  15. Google and Microsoft steal cash by Anonymous Coward · · Score: 0

    from consumers, then spend it on salaries to develop spyware with the US government.

    Isn't that all just gay as fuck though.

  16. companies's by Anonymous Coward · · Score: 0

    Fuck off and learn the English language, in that order.