Blog, Events & News
Bot Protection Beyond CAPTCHA
By Netacea / 23rd Feb 2021
Table of Contents
What is CAPTCHA?
CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) is designed to prevent bots or spam attacks from accessing a webpage. Traditionally users were tasked with typing text from a simple image, but over time CAPTCHA has evolved into more complex images and voice recognition in response to the increasing sophistication of attacks.
Google’s invisible reCAPTCHA service provides another approach to CAPTCHA, using browser cookies to determine if the device has accessed the site before and is therefore human rather than a bot. This approach bypasses the need for traditional “I am not a robot” buttons and only serves CAPTCHA to a suspicious user.
Is CAPTCHA still effective at blocking bots?
The traditional CAPTCHA forms of distorted text had to evolve as bots became more sophisticated and able to bypass them with ease.
How are bots able to bypass CAPTCHA?
The more sophisticated bots can bypass CAPTCHA easily. There are multiple online services that claim to solve CAPTCHA challenges with high degrees of accuracy using automated methods such as APIs and plugins. Humans can intervene through CAPTCHA farms, where large groups of people solve CAPTCHA for vendors who provide these solutions at an astonishingly low cost. There is also a widely available browser extension which will solve CAPTCHA challenges for a small fee, often as low as $1 for 500 reCAPTCHA solves. Online CAPTCHA solving vendor services are not limited to traditional text or picture CAPTCHA; Google’s audio CAPTCHA can be solved using their own speech-to-text API. Those providing these CAPTCHA solving services have written guides and produced methods to solve various challenges both for free or for a minimal fee.
These are just a few examples of CAPTCHA bypass techniques and there are many more demonstrated in countless YouTube videos and articles across the web. It is becoming increasingly easy for attackers to bypass CAPTCHA and carry out attacks for their own malicious gain.
Bot management is your critical layer of protection
Although CAPTCHA effectively minimizes the risks of spam and brute force attacks, websites cannot rely solely on CAPTCHA for protection. The sophistication of certain malicious bots is such that they can bypass CAPTCHA challenges with ease. Credential stuffing, card cracking and inventory hoarding bot attacks – to name just a few – may not be stopped by CAPTCHA alone, solidifying the need for an extra layer of protection.
Many businesses serve CAPTCHA to every user on a login or comments section. Netacea only serves up a challenge to a suspected bot. On top of that extra layer of protection, your customers’ user experience is seamless and improved.
Netacea Bot Management takes a revolutionary approach to tackling bots, protecting websites, mobile apps and APIs from malicious attacks such as scraping, credential stuffing and scalping, to give you peace of mind that your business is protected beyond CAPTCHA.
Sign up for a personalised demo and find out how Netacea works alongside CAPTCHA to detect and mitigate sophisticated bot attacks.