List of All Articles with Tag 'h'

Cathay Pacific Airways Ltd. expects its strong recovery from the Covid crisis to continue through the rest of

Bots are better and significantly faster than humans at cracking Captcha tests, according to a comprehensive new study that inspected the security system deployed in over 100 popular websites. Automated bots pose a significant threat to the internet because they can masquerade as legitimate human users and perform harmful operations like scraping content, creating accounts and posting fake comments or reviews, as well as consuming scarce resources. “If left unchecked, bots can perform these nefarious actions at scale,” warned scientists, including those from the University of California, Irvine. For over two decades, Captchas have been deployed as security checks by websites to block potentially harmful bots by presenting puzzles that are supposed to be straightforward for people to solve – but very difficult for computers. Earlier forms of Captcha, for instance, asked users to transcribe distorted text from an image, but with advances in computer vision and machine learning, bots soon caught up to recognise the text with near perfect accuracy. Engaged in an arms race with bots, Captchas have since evolved into an annoying presence on the internet, becoming increasingly more and more difficult to solve for both bots and humans. However, the new yet-to-be peer-reviewed research, posted in arXiv, finds bots are able to quickly crack Captcha tests with ease, suggesting global effort users put into cracking these puzzles every day may be more trouble than its worth. In the study, scientists assessed 200 of the most popular websites and found 120 still used Captcha. They took the help of 1,000 participants online from diverse backgrounds – varying in location, age, sex and educational level – to take 10 captcha tests on these sites and gauge their difficulty levels. Researchers found many bots described in scientific journals could beat humans at these tests in both speed and accuracy. Some captcha tests took human participants between nine and 15 seconds to solve, with an accuracy of about 50 to 84 per cent, while it took the bots less than a second to crack them, with up to near perfection. “The bots’ accuracy ranges from 85-100 per cent, with the majority above 96 per cent. This substantially exceeds the human accuracy range we observed (50-85 per cent),” scientists wrote in the study. They also found that the bots’ solving times are “significantly lower” or nearly the same as humans in almost all cases. Since current Captchas do not meet the required security goal of keeping bots away, researchers have called for better and more dynamic approaches to protect websites. Read More Shock for millions of voters as details exposed in hack – which went undetected for a year AI-driven cyberattack can now steal your passwords with near 100 per cent accuracy, study warns More than a million NHS patients’ details compromised after cyberattack Many adults would struggle to understand video-sharing platforms’ rules – Ofcom Now even Zoom tells staff: ‘Come back to the office’ Ozzy Osbourne PlayStation tweet which failed to reveal link to Sony banned

The Chinese economy has slipped into deflation, with consumer prices falling for the first time in more than two years in another sign of weakening demand.

By David Shepardson WASHINGTON The U.S. Commerce Department said on Wednesday that more than 460 companies have expressed

If you spot four Ferraris on a street in China, chances are a woman is behind the wheel

By Radhika Anilkumar (Reuters) -Coca-Cola HBC lifted its annual revenue forecast on Wednesday as the bottler benefited from higher prices

Charlotte FC's late-game heroics have earned them a spot in the 2023 Leagues Cup quarter-finals against Inter Miami.

A tourism boom will send shares in Turkish airport operator TAV Havalimanlari surging more than 40% over the

(Bloomberg Markets) -- On Brazil’s east coast, the vast parking lot off Avenida Henry Ford sits empty. Shift workers once

The spooky sequel already has a name.

'Stranger Things' star David Harbour would "love" to play Santa Claus again in a follow-up to the festive horror comedy.

Forty-one migrants died in a shipwreck off the Italian island of Lampedusa, survivors tell local media.