RE: CAPTCHA
"Sacks, Cailan C" <[email protected]>
| Newsgroups | gmane.comp.security.web-applications |
|---|---|
| Message-ID | <F66443425B689D4DBDFF960C4E6980330208AD4EB9@00172MBXJNB0103.za.sbicdirectory.com> |
Stupid idea. A spammer sees funky implementations of web forms every day, and they patch their bots accordingly. There is no security in obfuscation, just buys you time until someone beats you over the head. Google captcha. They do the work and you reap the benifit. Can't get easier. -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Steve Syfuhs Sent: Tuesday, January 25, 2011 3:05 AM To: Robin Wood; Shang Tsung Cc: [email protected] Subject: RE: CAPTCHA This is a brilliant idea. Did you come up with it? If not, got any resources? Sent from my Windows Phone -----Original Message----- From: Robin Wood Sent: Monday, January 24, 2011 7:49 PM To: Shang Tsung Cc: [email protected] Subject: Re: CAPTCHA On 24 January 2011 15:11, Shang Tsung <[email protected]> wrote: > We are planning to use a CAPTCHA in order to stop spam engines from > filling our Online Forms. From a quick research I made, I found there > are good and there are bad types of CAPTCHA. > > Does anyone know if there are any standard and secure implementations > of CAPTCHA that we can use? > > Any good articles on the subject? I hate captchas, always have so I use a reverse captcha on sites that I build. You add a field to the form with name and id of email. You then give it a label that says "Please leave blank" and hide them both with CSS. Most people won't see them because the CSS works, even if they do see them they read the message and obey. Spam engines on the other hand spot the email field and happily fill it in. You then silently drop any contact forms with values in the email field. Normal humans aren't affected and you trick most generic bots. Robin This list is sponsored by Cenzic -------------------------------------- Let Us Hack You. Before Hackers Do! It's Finally Here - The Cenzic Website HealthCheck. FREE. Request Yours Now! http://www.cenzic.com/2009HClaunch_Securityfocus -------------------------------------- This list is sponsored by Cenzic -------------------------------------- Let Us Hack You. Before Hackers Do! It's Finally Here - The Cenzic Website HealthCheck. FREE. Request Yours Now! http://www.cenzic.com/2009HClaunch_Securityfocus -------------------------------------- Standard Bank email disclaimer and confidentiality note Please go to http://www.standardbank.co.za/site/homepage/emaildisclaimer.html to read our email disclaimer and confidentiality note. Kindly email [email protected] (no content or subject line necessary) if you cannot view that page and we will email our email disclaimer and confidentiality note to you. This list is sponsored by Cenzic -------------------------------------- Let Us Hack You. Before Hackers Do! It's Finally Here - The Cenzic Website HealthCheck. FREE. Request Yours Now! http://www.cenzic.com/2009HClaunch_Securityfocus --------------------------------------