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Can Captcha be incorporated into a java-based web-site and used as a security measure?

 
tangara goh
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Dear Experts,

I notice quite a number of websites are using Captcha.

Is it good to incorporate Captcha into a java-coded website or unnecessary?

If my website doesn't need user to even register to login, what is the most basic security measure I should incorporate?

 
YogeshS Pandit
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I think it depends on the nature of your application. CAPTCHAs are used for authentication/authorization and that too mostly for community oriented web applications (like wikis, blogs etc). If your application allows users to contribute something (files/reviews/replies) and you want to authenticate potential users only, then you can go for CAPTCHAs. That will tell human and computer spammers apart as the name suggests. It doesn't really matter if your application is J2EE based or LAMP or .NET or whatever, you can incorporate CAPTCHAs in all of them. Hope this helps.
 
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