Skip to main content

AI algorithms bypass Google reCAPTCHA

The AI algorithm consistently triumphs over CAPTCHA defences

Introduction

AI algorithms bypass CAPTCHA
Three AI researchers from ETH Zurich, Switzerland, have adapted an AI-driven image-processing model to bypass Google's reCAPTCHAv2 human-verification system.

Research Team

  • Andreas Plesner
  • Tobias Vontobel
  • Roger Wattenhofer

These researchers modified the YOLO image-processing model to create a new version capable of consistently solving Google's CAPTCHA. Their paper is available on the arXiv preprint server.

Background on CAPTCHA

For decades, website administrators have employed various methods to prevent bots from accessing their systems. One widely adopted technique was CAPTCHA, the Completely Automated Public Turing to tell Computers and Humans Apart, which could be seamlessly integrated into login processes.

Evolution of CAPTCHA

In 2007, Google launched its proprietary CAPTCHA applet, now updated to the latest version known as reCAPTCHAv2. Like other CAPTCHA systems, it requires users to select a specific image to proceed.

Research Findings

The Swiss team found in their latest effort that minimal adjustments to an existing AI model were sufficient to enable it to solve Google's CAPTCHA.

Modifications to the YOLO Model

The research focused on modifying the YOLO model to identify objects commonly used in reCAPTCHAv2, including:

  • Car
  • Bridges
  • Traffic Lights

The team then trained the model on thousands of images featuring these objects.

Testing and Results

Testing revealed that the model didn't require complete accuracy since reCAPTCHAv2, like other CAPTCHAs, permits multiple attempts.

Key Observations

  • The model to successfully pass every test.
  • Even when the model failed initially, it succeeded on the second puzzle.
  • Training the model on only 13 object categories was sufficient for it to solve the CAPTCHA.

Implications for Future CAPTCHA Development

Continued testing showed that the model was capable of bypassing even the most advanced CAPTCHAs, which included features such as mouse tracking and browser history.

Future Research Directions

This revelation will almost certainly drive new investigations into creating CAPTCHAs that are impervious to AI systems.

Source

Labels:

Comments

Post a Comment

Popular posts from this blog

NASA chile scientists comet 3i atlas nickel mystery

NASA and Chilean Scientists Study 3I/ATLAS, A Comet That Breaks the Rules Interstellar visitors are rare guests in our Solar System , but when they appear they often rewrite the rules of astronomy. Such is the case with 3I/ATLAS , a fast-moving object that has left scientists puzzled with its bizarre behaviour. Recent findings from NASA and Chilean researchers reveal that this comet-like body is expelling an unusual plume of nickel — without the iron that typically accompanies it. The discovery challenges conventional wisdom about how comets form and evolve, sparking both excitement and controversy across the scientific community. A Cosmic Outsider: What Is 3I/ATLAS? The object 3I/ATLAS —the third known interstellar traveler after "Oumuamua (2017) and 2I/Borisov (2019) —was first detected in July 2025 by the ATLAS telescope network , which scans he skies for potentially hazardous objects. Earlier images from Chile's Vera C. Rubin Observatory had unknowingly captured it, but ...
Post a Comment
Read more

Quantum neural algorithms for creating illusions

Quantum Neural Networks and Optical Illusions: A New Era for AI? Introduction At first glance, optical illusions, quantum mechanics, and neural networks may appear unrelated. However, my recent research in APL Machine Learning Leverages "quantum tunneling" to create a neural network that perceives optical illusions similarly to humans. Neural Network Performance The neural network I developed successfully replicated human perception of the Necker cube and Rubin's vase illusions, surpassing the performance of several larger, conventional neural networks in computer vision tasks. This study may offer new perspectives on the potential for AI systems to approximate human cognitive processes. Why Focus on Optical Illusions? Understanding Visual Perception O ptical illusions mani pulate our visual  perce ption,  presenting scenarios that may or may not align with reality. Investigating these illusions  provides valuable understanding of brain function and dysfunction, inc...
Post a Comment
Read more

fractal universe cosmic structure mandelbrot

Is the Universe a Fractal? Unraveling the Patterns of Nature The Cosmic Debate: Is the Universe a Fractal? For decades, cosmologists have debated whether the universe's large-scale structure exhibits fractal characteristics — appearing identical across scales. The answer is nuanced: not entirely, but in certain res pects, yes. It's a com plex matter. The Vast Universe and Its Hierarchical Structure Our universe is incredibly vast, com prising a p proximately 2 trillion galaxies. These galaxies are not distributed randomly but are organized into hierarchical structures. Small grou ps ty pically consist of u p to a dozen galaxies. Larger clusters contain thousands, while immense su perclusters extend for millions of light-years, forming intricate cosmic  patterns. Is this where the story comes to an end? Benoit Mandelbrot and the Introduction of Fractals During the mid-20th century, Benoit Mandelbrot introduced fractals to a wider audience . While he did not invent the conce pt —...
Post a Comment
Read more