Viper Squad Ten

[ Thursday, August 18, 2005 ]

One thing that I've learnt today
Starbuck [19:07] Comments: 0 []
Example Is that the distorted collection of numbers and letters that one is often asked for after forgetting your webmail password a few times is called a ("completely automated public Turing test to tell computers and humans apart"), a kind of reverse-Turing test to prove that you're a human rather than some scumbot trying to dictionary-search your password. Good for preventing automated creation of free email accounts, or blog comment spam for that matter.

Being the boring man I man, I was looking at an interesting report written back in 2003, Verifying the Presence of Humans: Three New CAPTCHAs. Particularly like the java applet What's Wrong With This Picture...

But as this fellow proves with his captcha decoder PWNtcha ("Pretend We?re Not a Turing Computer but a Human Antagonist"), there's still a lot of breaking going on for the alphanumeric varieties...

Personally, I'm so paranoid online that I sometimes hide bits and pieces of logins and passwords in amongst various junk-type in a Notepad window before ligating them in the form fields via highlight/copy/pasting...

Which is one reason why I wish I could be shot of my now-redundant BG (before-Gmail) Hotmail accounts. I can't shut them down as - very occasionally - something useful still comes through. But the damn thing doesn't even allow my preferred password (I try to prefix all of my different passwords with a regular 9 character block of alphanumerals).

So there you go. That's what I've learnt today. But I didn't say it was going to be interesting.

27 AUGUST UPDATE: And I now see that Blogger now allows blog-owners to use captcha's for their Comments...

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