Zerosecurity
  • Home
  • Security
    • Exploits
    • Mobile Security
  • Malware
  • Data Breaches
  • Crypto
  • Privacy
  • Downloads
    • Malwarebytes
    • Exploits
    • Paper Downloads
    • Software & Service Reviews
No Result
View All Result
SUBSCRIBE
Zerosecurity
  • Home
  • Security
    • Exploits
    • Mobile Security
  • Malware
  • Data Breaches
  • Crypto
  • Privacy
  • Downloads
    • Malwarebytes
    • Exploits
    • Paper Downloads
    • Software & Service Reviews
No Result
View All Result
Zerosecurity
No Result
View All Result
Home Public

Video Captcha Security cracked

Paul Anderson by Paul Anderson
February 22, 2012 - Updated on February 23, 2012
in Public, Security, Technology
0
20120220 22143234 capcha videocaptcha large verge medium landscape
74
SHARES
1.2k
VIEWS
Share on FacebookShare on Twitter

20120220 22143234 capcha videocaptcha large verge medium landscapeResearchers at Stanford have came across a way to breach state-of-the-security video Captchas of the class deployed from companies such as NuCaptcha with a 90% success rate.

You might also like

Amazon bans Flipper Zero

Pompompurin of BreachForums Arrested and Charged

Stolen credit card market BidenCash leaks over 2 million credit cards

This new video Captcha presents users with a video, which most of the time is advertisement.  Within the video is a word, or string of letters which you then have to type into a text box.

Many blieve this has solved all problems and stopped automated programs from signing up – until now.

After changing the NuCaptcha videos into individual pictures, the backdrop image was subtracted by the researchers and the left over letters became a black-and-white image to facilitate processing.

The team then applied algorithms to appoint the most exciting objects in each picture, tracking these across frames as they altered. Succeeding, they refined the amount of objects by estimating the expected minimum size of the Captcha, subjecting the remaining ones to an algorithmic program configured to distinguish rotated letters from ‘straight’ ones.

“It is with combined efforts of researchers […] that potential weaknesses are discovered and resolved, prior to them becoming practice by attackers. No single Captcha will defend against every possible attack,” NuCaptcha said.

Tags: brokencaptchasecurity
Share30Tweet19
Paul Anderson

Paul Anderson

Editor and chief at ZeroSecurity. Expertise includes programming, malware analysis, and penetration testing. If you would like to write for ZeroSecurity, please click "Contact us" at the top of the page.

Recommended For You

Amazon bans Flipper Zero

by Paul Anderson
April 11, 2023
0
Flipper zero no longer being sold on Amazon

E-commerce giant Amazon has recently banned the sale of the Flipper Zero portable multi-tool for pen-testers, citing its potential use as a card-skimming device. The move has prompted...

Read more

Pompompurin of BreachForums Arrested and Charged

by Paul Anderson
March 17, 2023 - Updated on July 23, 2023
0
Pompompurin of BreachForums Arrested and Charged

On Wednesday afternoon, federal agents arrested a man in Peekskill, New York, for allegedly running a dark web data breach site known as "BreachForums." The suspect, Conor Brian...

Read more

Stolen credit card market BidenCash leaks over 2 million credit cards

by Paul Anderson
March 3, 2023
0
Stolen credit card market BidenCash leaks over 2 million credit cards

BidenCash, a marketplace that focuses on carding, has leaked a database of 2,165,700 credit and debit cards to celebrate its first anniversary. Instead of keeping the leak a...

Read more

Cloudflare Stops Record-Breaking DDoS

by Christi Rogalski
June 29, 2022
0
Cloudflare record breaking DDoS

Cloudflare has reported that it successfully neutralized the largest recorded DDoS attack in history. The attack, a 26 million request per second onslaught, targeted a customer on the...

Read more

Chrome Browser Extension Vytal Prevents Privacy Leaks

by Christi Rogalski
June 19, 2022 - Updated on June 20, 2022
0
Vytal Chrome Extension spoofs location data

Released in 2008, Google Chrome is a cross-platform web browser. With over 3.2 billion internet users worldwide, there's no denying that Chrome is the most popular browser today....

Read more
Next Post

Decrypting Safari saved passwords

Related News

Emotet now utilizing Onenote for its spam campaigns

Emotet now utilizing Onenote for its spam campaigns

March 26, 2023
ChipMixer platform tied to crypto laundering scheme – seized by authorities

ChipMixer platform tied to crypto laundering scheme – seized by authorities

March 17, 2023
NSA intercepting U.S. Routers

NSA intercepting U.S. Routers

June 6, 2014 - Updated on March 17, 2023
Zerosecurity

We cover the latest in Information Security & Blockchain news, as well as threat trends targeting both sectors.

Categories

  • Crypto
  • Data Breaches
  • DotNet Framework
  • Downloads
  • Exploits
  • Exploits
  • Information
  • Legal
  • Malware
  • Malware Analysis
  • Mobile Security
  • Paper Downloads
  • Piracy
  • Privacy
  • Programming
  • Public
  • Security
  • Security
  • Software & Service Reviews
  • Technology
  • Tools
  • Tutorials
  • Video Tutorials
  • Whitepapers
  • Zero Security
  • Contact Us
  • List of our Writers

© 2022 ZeroSecurity, All Rights Reserved.

No Result
View All Result
  • Home
  • Security
  • Exploits
  • Data Breaches
  • Malware
  • Privacy
  • Mobile Security
  • Tools
  • Contact Us
  • Privacy Policy

© 2022 ZeroSecurity, All Rights Reserved.