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May 16, 2022 · The fake CAPTCHA sites are part of a long lasting campaign responsible for injecting malicious scripts into compromised WordPress websites. This campaign leverages known vulnerabilities in WordPress themes and plugins and has impacted an enormous number of websites over the years. The compromised websites all share a common issue.
Nov 23, 2011 · The next tactic used was to see if they could find a flaw in the reCAPTCHA implementation. One thing they discovered about reCAPTCHA was that it always presents two words to a user for decoding - one word is a control word known by the reCAPTCHA system, while the other is an unknown word (reCAPTCHA uses the humans to help correct OCR errors).
Nov 15, 2021 · reCAPTCHA Domain Hacks. Cybercriminals can use reCAPTCHAs to attack your websites without leaving any trace for you to detect the breach. The typical method is to lure the users to a malicious website displaying a fake reCAPTCHA. The user’s inputs in response to the prompts on the fake reCAPTCHA trigger a download of malware onto the user’s ...
In short, yes they can. While reCAPTCHA v2 and v3 can help limit simple bot traffic, both versions come with several problems: User experience suffers, as human users hate the image/audio recognition challenges. CAPTCHA farms and advances in AI allow cybercriminals and advanced bots to bypass reCAPTCHAs easily.
Aug 13, 2021 · How attackers are using ‘CAPTCHA’ tests to avoid detection and download malware. A recent technique employed by cyber-attackers to remain undetected and install their malicious software is to utilise ‘CAPTCHA’ tests (i.e., ‘I am not a robot’ checks). Google’s ‘reCAPTCHA’ is often used as well as various other fake variants.
It provides the user with the well-known “I’m not a robot” checkbox that users need to toggle. Once the checkbox is ticked, the user will either pass immediately or, if reCAPTCHA is still uncertain about a request’s humanity, be presented with an image, text, or audio challenge.
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Jul 12, 2017 · In March of this year, Google released an upgraded version of its reCAPTCHA called “Invisible reCAPTCHA.” Unlike “no CAPTCHA reCAPTCHA,” which required all users to click the infamous “I’m not a Robot” button, Invisible reCAPTCHA allows known human users to pass through while only serving a reCAPTCHA image challenge to suspicious users.
