Would BotDetect CAPTCHA protect us against email harvesting bots?
You should not use CAPTCHA images to protect your email from harvesting bots. Those bots generally can’t deal with images at all, because they must run across many websites/pages and it’s inefficient to analyze every picture they find and check does it possibly contain an email address. Algorithm security is important when you defend against automated-registration bots which attack specific CAPTCHA images on specific web pages. They a-priori do know which images contain text (the CAPTCHA images!) and attack those particular images. So: • Obfuscating your email addresses in a CAPTCHA image doesn’t make any security difference: any kind of image provides good enough security, as long as it’s not obvious that particular image contains an email address. • Obfuscating your email addresses with CAPTCHA images will significantly complicate life for everyone who wants to contact you. • We strongly recommend you not to obfuscate email addresses in any CAPTCHA-like way. • Instead of providing yo
