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Now Google's CAPTCHA Is Broken
Posted by
CmdrTaco
on Thu Oct 02, 2008 10:33 AM
from the throw-it-on-the-pile dept.
from the throw-it-on-the-pile dept.
steveit_is writes "Yesterday it was reported that Microsoft's revised CAPTCHA had been cracked. Now it's Google's turn. In a move that is sure to surprise no one, the spammers behind 'Xrumer' have announced that they've not only cracked Google's CAPTCHA, but other forms of image verification as well, including 'pick the cat' style CAPTCHA."
Related Stories
[+]
Spammers Targeting Microsoft's Revised CAPTCHA 303 comments
toomuchtoomuchspam writes "According to Websense, Microsoft's CAPTCHA has been busted again. CAPTCHA was surely a logical move for different service providers to fight against spammers, but it seems to be melting down. 'Realizing the potential for massive abuse from spammers with anti-CAPTCHA capabilities, who could use the clean IP reputation to carry out various attacks over Email and Web space, Microsoft attempted to increase the complexity of their CAPTCHA system. The CAPTCHA system was revised in an attempt to both prevent automatic registrations from computer programs or automated bots, and preserve CAPTCHA's usability and reliability. As this attack shows, those efforts have failed,' says Websense security researcher Prasad. Could there be any better CAPTCHA? A better solution?"
[+]
Now Even Photo CAPTCHAs Have Been Cracked 340 comments
MoonUnit writes "Technology Review has an interesting article about the way CAPTCHAS are fueling AI research. Following recent news about various textual CAPTCHAs being cracked, the article notes that a researcher at Palo Alto Research Center has now found a way crack photo-based CAPTCHAs too. Most approaches are based on statistical learning, however, so Luis von Ahn (one of the inventors of the CAPTCHA) says it is usually possible to make a CAPTCHA more difficult to break by making a few simple changes."
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My test: (Score:5, Funny)
Re:My test: (Score:4, Insightful)
Captcha is a joke. They're become so difficult to read that I can't even decipher what it means!
I don't know what these companies are going to do to keep spammers from running email bot networks.
I want to say verify identity with a credit/debit card, but that won't work very well because of Johnny 13 year old who wants a Gmail account.
I've given up. Please just send me large amounts of email asking me to enlarge my pen15 while remortgaging my sub prime house!
Parent
Re:My test: (Score:5, Insightful)
I want to say verify identity with a credit/debit card, but that won't work very well because of Johnny 13 year old who wants a Gmail account.
That won't work for anyone who cares about their own privacy. Why would I want to give anyone my credit or debit card number if I wasn't actually buying something from that site at that particular time?
Parent
Re: (Score:3, Insightful)
Re:My test: (Score:4, Funny)
I want to say verify identity with a credit/debit card
While we're thinking of bad ideas, why don't we give them our bank account numbers too?
Parent
Re:My test: (Score:5, Insightful)
"Captcha is a joke. They're become so difficult to read that I can't even decipher what it means!"
I hear that. I was trying to complete one the other day, and honestly, I was only making educated guesses as to what the characters were, it took me three or four attempts. If they get any tougher, the only people who'll be able to do them will be the spammers using this kind of software!
Parent
Re:My test: (Score:4, Insightful)
Soon, the only thing that will be able to read a CAPTCHA will be automated spam bots. The new CAPTCHA test will be: "If you can read this CAPTCHA, you are a spammer."
Those that get the CAPTCHA wrong will get in. Brilliant! Anyone want to subscribe to my newsletter?
Parent
Simple solution (Score:5, Funny)
I've got all the email addresses I want so lets just consider the internet closed to new entrants. I know it sounds draconian but I think we should build a great big firewall around the internet to stop all these illegal immigrants^H^H^H^H^spammers getting in.
Either that or can we just turn a blind eye while Google DDoSes every server associated with these people into oblivion.
Re:Simple solution (Score:4, Insightful)
Your ideas are intriguing to me and I wish to subscribe to your newsletter.
Really though, I think we would have been better off if we did this about 10 years ago (maybe even 15). Better late than never though, I guess.
Parent
Well... (Score:5, Insightful)
Re:Well... (Score:5, Insightful)
What is? Breaking Captcha? Not even close. Whether it's done with software or by paying humans in China, India, Africa, etc it's not impressive to say the least.
Google's captcha has been broken for a very long time. Only nobody has admitted it until now. I have several Google alerts setup for certain keywords. I use to get some pretty interesting alerts to articles, blogs, other sites, etc. Now 98%+ of the alerts I get are Blogger.com spam sites. It's been this way for about 5 months, possibly longer, but that's about when I started seeing an influx of pure junk.
At first I was reporting them to Google. Then after about the 100th or so alert and having checked several of the blogs to see if they were taken down (they weren't, just the one particular page that I reported was) I just gave up. Realizing that Google's captcha is seriously flawed and was broken.
Google and others need to change how easy it is for people to sign up for an account with them. Yes, it's going to be a hard row to hoe, but it needs to be done, especially for blogspot/blogger.com as those pages are just littering the internet with junk.
Parent
Great Source (Score:5, Insightful)
Re: (Score:3, Interesting)
Enlarge your penis with Gillette Venus (Score:5, Funny)
Why should we believe this any more than we believe a cream can add two inches to your penis?
Possible bad example. Shaving cream along with a razor actually can add visible inches to a man's penis by taking pubic hair out of the way.
Parent
Re:Enlarge your penis with Gillette Venus (Score:5, Funny)
Parent
A modest proposal (Score:5, Funny)
2. Wait for crackers to solve it.
3. Profit!!
Re:A modest proposal (Score:4, Funny)
Assume N == 1,
p = 1p
You are rich now...
I hope you buy porsche for that money!
Parent
pick the cat (Score:5, Funny)
Re: (Score:3, Funny)
Couldn't that be part of the test? (Score:3, Interesting)
The real problem is GMail (Score:5, Interesting)
Google has become a key enabler in spams and scams, because it's so easy to create GMail accounts in bulk. [jiffycreator.com] Many sites block email addresses from Hotmail and AOL, because they're mostly either spammers or losers. GMail once had a better reputation, because it was launched as an "exclusive" service. But we're getting close to the point where probably time to start blocking GMail addresses too.
Want to see a GMail scammer in action right now? Read this. [getafreelancer.com]
What I'm most excited about though is... (Score:3, Funny)
"including 'pick the cat' style CAPTCHA."
This is excellent news, since it now means that I can rely on this thing to find me suitable pussy instead of having to look for it myself... :)
DARPA math tests (Score:5, Funny)
captchas, what about handwriting recognition? (Score:5, Interesting)
OK can someone pleas hire these guys to work on handwriting recognition software? If they can ready these bizarrely twisted captchas why can't Palm read my name?
IT salaries are just too low. (Score:4, Interesting)
Next CAPTCHAs (Score:4, Funny)
As usual, our firends at DARPA are always one step ahead. Use these to replace of the old CAPTCHAs.
1 - Develop a mathematical theory to build a functional model of the brain that is mathematically consistent and predictive rather than merely biologically inspired.
2 - Develop the high-dimensional mathematics needed to accurately model and predict behavior in large-scale distributed networks that evolve over time occurring in communication, biology, and the social sciences.
3 - Address Mumford's call for new mathematics for the 21st century. Develop methods that capture persistence in stochastic environments. ...
Can we get them to release the source? (Score:4, Funny)
Re:Why (Score:4, Insightful)
How about an international treaty to implement the death penalty for spammers all over the world.
I mean, why not? Don't we squish mosquitos when they pester us? Spammers are a thousand times more annoying and just as harmful and useless.
Parent
Re:Why (Score:4, Insightful)
How about an international treaty to implement the death penalty for spammers all over the world.
I mean, why not? Don't we squish mosquitos when they pester us? Spammers are a thousand times more annoying and just as harmful and useless.
How about a death penalty for anyone that buys anything from spam?
Parent
I'll do you one better! (Score:5, Funny)
Parent
Re:Why (Score:5, Funny)
Killing people is wrong. Comparing people to pests is something that the Nazis liked to do, with the same intention: to pave the way for killing people.
What if Godwin's Law carried the Death Penalty?
Parent
Re:Why (Score:5, Insightful)
Parent
Re:Why (Score:5, Insightful)
aren't these guys in jail?
I think the real question is: why are these people not working in research institutes? Image recognition is a hard problem. It's baffling that someone with that kind of talent would be working for spammers instead of in a tenured university position.
Parent
Re:Why (Score:5, Funny)
Being a criminal has excellent hours. And the job interview is easy. You never have to worry about being fired, laid off, etc, and you are responsible for your own paychecks. It's kind of like being a contractor, with the added benefit that you can choose your customers whether your customers are happy about it or not (usually not).
Parent
Re:Why (Score:5, Interesting)
Another benefit is that the drug tests aren't "Have you?" they are "How much do you want?"
Parent
Re:Why (Score:5, Interesting)
It's baffling that someone with that kind of talent would be working for spammers instead of in a tenured university position.
Not when you consider how much professors make vs. how much spammers who can beat captchas can make. Hint: if you find a quick way to factor semiprimes, don't snag $1 million from the Clay Institute. Reap $1 billion from credit cards. If you can easily toss aside ethics.
Incidentally, I was just reading Douglas Hofstadter's Metamagical Themas, where he goes in great depth talking about the difficulty of defining the letter "A", and how people are capable of recognizing A's in truly bizarre fonts. (And how it carries over to native readers of Chinese and defining Chinese characters.) He pursuasively argues that ability to recognize any 'A', including all the bizarre fonts with 'A' is AI-complete (though of course he didn't use that term). So it seems there's quite a ways to go in making captchas harder: don't just distort the image; use the craziest fonts you can.
Parent
Re:Why (Score:5, Funny)
It's baffling that someone with that kind of talent would be working for spammers instead of in a tenured university position.
Why $pammer$ in$tead of $chool? I$ that really your que$tion? $omehow, I think you might have mi$$ed the mo$t obviou$ motivation.
Parent
Re:Why (Score:5, Funny)
What does Microsoft have to do with it?
Parent
Re: (Score:3, Interesting)
A 1% success rate is good enough to effectively "break" a captchca, but not good enough to really advance the state of machine vision by itself. In the end though, some good OCR work could come of these efforts, but not in comparison to the money and time everyone else loses from spam; We could have just funded the research. Sending spam, and unfortunately writing advanced spam tools, pays better than a university position.
Re:Why (Score:5, Interesting)
"I think the real question is: why are these people not working in research institutes? Image recognition is a hard problem. It's baffling that someone with that kind of talent would be working for spammers instead of in a tenured university position."
So, I have a Ph.D. and know how to write this kind of software (well, I know how to go about writing this kind of software and have done it for other domains). Here's why I'm not working at a research institute or pursing a tenured university position:
First off, research institutes don't really exist anymore. There are a few corporate labs left, but they all focus on medium term product development (5 years out). The national labs still exist, but they're managed like businesses now and it's more difficult to do pure research at them. University "institutes" are just glorified research labs. If you're not the PI, you're either a post-doc, grad student, or tech, none of which is a viable long-term career option.
To get tenure, you have to spend 4-8 years working non-stop writing grants to fund students to do research so you can build up a publication record that impresses the tenure committee. Note that grants and pubs are both necessary: grants show you can bring money into the university, publications get the approval of the committee members outside your domain who only know how to assess research abilities by impact factors.
During this time, all your research is done by graduate students, who are often at the beginning of the careers and have limited technical abilities. They may be brilliant, but they are not the most efficient workers. So, not only do you have to publish, but your labor pool consists of people with 1-3 years experience.
Before tenure, you'll also only pull in about $60-90k/yr (and I know two very smart people who worked for free their first year as "visiting professors" just to get their foot in the door). At the end of this, if you don't get tenure, you're unemployable until you build up some marketable skills.
Contrast this with industry positions. While you don't get to work on whatever you want, there are some very interesting problems out there if you take your time to find a good position. At work, you're hired to do a job, not chase down funding, so you can spend more time working on the fun stuff. The hours are reasonable, so you have time in the evenings for other projects/hobbies (you don't have free time in academia). If you're selective in your employer, you'll also work with people with a broad range of experience and skills. You'll also make more money. And, if you're good and publish from time to time, you can get a tenured position later in life without having to go through the tenure process.
Of course, if you're evil, you can also find work breaking CAPTCHAs and building bot nets.
Note that though this sounds bitter, I'm not... I had a blast going back to school and highly recommend it to people mid-career (hint: go to the mid-west where it's cheap to live and your quality-of-life will remain about the same). But, modern academic environments just don't present an enticing career path.
-Chris
Parent
Re:Why (Score:4, Interesting)
Because they are circumventing a computer security measure. That is a felony in the U.S.
Parent
Re: (Score:3, Interesting)
Re:Why (Score:5, Funny)
Yeah, jail all those muck-runners! (what is a 'muck'?)
Parent
Re:Why (Score:4, Informative)
You (but mainly parent poster) might be interested to know that the word is actually "amok" which is defined as a "psychic disturbance characterized by depression followed by a manic urge to murder."
Indeed, this is what it means to "run amok." Also refer to the classic Looney Tunes clip, "Duck Amok."
hmmm... this is either Informative or Off-Topic. Guess I'll leave that to the moderators to decide.
Parent
Re:Why (Score:4, Informative)
(what is a 'muck'?)
Among other things, muck is horse manure. To muck a stall is to remove all the droppings and change the bedding.
Parent
Re: (Score:3, Insightful)
No, they write image recognition software. The people who use their programs defraud Google.
Re:Why (Score:4, Insightful)
Don't you mean passing turing tests?
Parent
Re:Why (Score:5, Insightful)
Parent
Re: (Score:3, Interesting)
Great. Let's forbid Nmap. Forget that it's a very useful network administration tool. Hackers use it a lot.
Let's forbid cars. Bank robbers use them to escape.
Re:Why (Score:5, Funny)
From TFA:
This time those evil Russian bastards..
That would be why.
What does being born out of wedlock have to do with it?
Parent