A QR captcha is an innovative and secure way to verify human users and prevent automated bots from accessing certain online services or websites. Unlike traditional text-based captchas, a QR captcha uses Quick Response (QR) codes to present challenges to users, making it more user-friendly and difficult for bots to crack.
Here's an example of how a QR captcha challenge could be presented:
Title: QR Captcha Verification
Instructions: To access the content, please complete the following QR captcha challenge.
1. Scan the QR Code: Use your smartphone or tablet to scan the QR code below. You can use any QR code scanner app or your device's built-in camera.
[Place QR Code Image Here]
2. Decode the Hidden Message: Once you've successfully scanned the QR code, it will reveal a hidden message or a combination of characters. Your task is to decode the message and type it in the box provided below.
[Text Input Box]
3. Submit and Verify: Type the decoded message accurately into the input box and click the "Verify" button. If the message matches the original challenge, you will be granted access to the content.
4. Can't Scan the QR Code? If you are unable to scan the QR code using your device, you can click the "Get New QR Code" button to refresh the challenge and receive a new QR code.
5. Need Help? If you encounter any difficulties or have questions regarding the QR captcha challenge, please click the "Help" button for assistance.
Note: QR captchas are designed to ensure security and protect against automated bots. Please refrain from sharing the QR code or the decoded message with others to maintain the integrity of the captcha.
[Verify Button] [Get New QR Code Button] [Help Button]
By implementing a QR captcha, you add an extra layer of protection to your website or service while offering a more user-friendly and visually appealing verification method for your human users. It's important to keep the challenges updated and occasionally refresh the QR codes to prevent any potential brute force attacks.