New Google technology can solve CAPTCHA puzzles

Tags: google, IT
Do you often get frustrated with online forms that ask you to type jumbled letters to prove that you are human? New technology can easily decipher them.

CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) puzzles are designed to tell humans and bots apart on the web for reasons such as minimising spam.

Different CAPTCHA services go about differentiating humans and bots in different ways, for example, distorting and skewing a series of letters to make them too difficult for automated programmes to decipher, but not so difficult that humans can't make them out.

Researchers have found that Google's Street View technology can decipher them with 99 per cent accuracy, 'Gizmag' reported.

A company that Google bought in 2009, reCAPTCHA, takes a different approach that not only provides the security of a CAPTCHA form, but actually serves another purpose. ReCAPTCHA is used to digitise old printed materials such as books.

It presents the user with two words that could not initially be read by computers - one that has previously been verified by a number of users and one that has not. In this way, it can both determine if a user is human and partially verify a new word.

Given the purpose and prevalence of CAPTCHAs, it's understandable that individuals with malicious intent may want to crack them.

Google does its own research into this so that it can improve the security of the reCAPTCHA service. As part of its research, it has applied the technology it uses for identifying house numbers in Street View to identifying CAPTCHA words.

The research found that the technology could "decipher the hardest distorted text puzzles from reCAPTCHA with over 99 per cent accuracy."

As a result, Google suggests that answering a distorted image puzzle should not be the only factor used to distinguish a human from a machine.

Post new comment

E-mail ID will not be published
CAPTCHA
This question is for testing whether you are a human visitor and to prevent automated spam submissions.

EDITORIAL OF THE DAY

  • The current value of the rupee does not merit market intervention

    The rupee, losing 40 paise per month against the dollar since May, is expected to remain under pressure till the calendar runs out on December 31, bef

FC NEWSLETTER

Stay informed on our latest news!

INTERVIEWS

GV Nageswara Rao

MD & CEO, IDBI Federal Life

Timothy Moe

Goldman Sachs

Chander Mohan Sethi

CMD, Reckitt Benckiser India

COLUMNIST

Tushar Gandhi

Sustainable model for rural sanitation

Prime minister Narendra Modi has promised to build a toilet ...

Zehra Naqvi

How smells evoke strong memories

Remember that time when a passing fragrance transported you to ...

Dharmendra Khandal

Indian zoos need a fresh approach

Recently, when a man jumped in a tiger trench of ...

INTERVIEWS

William D. Green

Chairman & CEO, Accenture