Search results for: "captchas"

What are the advantages of creating a custom captcha in PHP instead of using Zend functions?

Creating a custom captcha in PHP allows for more flexibility and customization compared to using Zend functions. By creating a custom captcha, you hav...

What are the potential pitfalls of using randomly generated images for security codes in PHP logins?

Using randomly generated images for security codes in PHP logins can be problematic because it may not provide enough entropy to effectively prevent a...

What is the most common method used to protect online forms from spam in PHP?

One common method used to protect online forms from spam in PHP is to implement a CAPTCHA (Completely Automated Public Turing test to tell Computers a...

How important is the use of graphics in a Bot Protect feature, and what impact does it have on its effectiveness?

The use of graphics in a Bot Protect feature is crucial as it helps differentiate between human users and bots. By incorporating graphics like CAPTCHA...

What are common methods used by spammers to bypass graphical security measures in PHP forums?

Spammers often use automated bots to bypass graphical security measures, such as CAPTCHAs, in PHP forums by utilizing OCR (Optical Character Recogniti...