Looks like nothing is safe from becoming an advertisement these days.

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You'll recall that, about a year ago, we decided to make captchas—those things you find on Web sites at login that require you to decipher and type words or numbers—our raison d'etre.

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Google has released research results about a new test to foil computers pretending to be humans by requiring them to orient an image so it's upright.

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Google has released research results about a new test to foil computers pretending to be humans by requiring them to orient an image so it's upright.

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Soon you may not need to squint at distorted letters to prove your humanity.

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You're just about ready to buy a pair of tickets on Ticketmaster, but before you can take the next step, an annoying box with wavy letters and numbers shows up on your screen. You dutifully enter in what you see—and what a bot presumably can't—in the name of security.

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Are you a human or a computer? Over the Internet, it's getting harder and harder to tell. Some of the common tests used by Web sites to distinguish between legitimate flesh-and-blood visitors and malicious human-mimicking computers recently appear to have been outwitted.

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Try this new CAPTCHA service, which make it more secured from robots, who are designed to decipher the text presented as a picture, and write them, before you publish something on websites. This new service relies on the answer, which only humans can answer.

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I'm trying to download a file from the evil Rapidshare (who make you wait about 2 painful minutes before giving you the file) and just after the wait time is over, I get a Captcha looking like this.

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In the last two months, several Internet security firms have suggested that spammers had devised a way to bust the "captcha" that is protecting Gmail.

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Websense Security Labs has discovered that Google's popular web mail service Gmail is being targeted in recent spammer tactics. Spammers in these attacks managed to created bots that are capable of signing up and creating random Gmail accounts for spamming purposes.

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I Despise Spammers

While I was sleeping, some idiot's bot hit my blog and posted 28,000 comments scattered throughout all of my blogs and articles.

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The CAPTCHA security system that Yahoo, and many other email service providers adopt to prevent spam, may not be secure, according to Russian security researchers. The researchers claim to have found a way in which the security system can be compromised.

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PHP Anti-Spam Captcha Tutorial to stop automated web robots and spammers from taking advantage of your site.

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A series of photographs shows "Melissa," no relation to the 1999 worm by the same name, with progressively fewer clothes and more skin each time the user correctly enters the characters in an accompanying CAPTCHA (Completely Automatic Public Turing Test to Tell Computers and Huma …

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A weapon used to fight spammers is now helping university researchers preserve old books and manuscripts.

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An executive at Microsoft Corp. has an unusual idea for beating spammers. Powerful software tools and supercomputers aren't involved, but kittens are.

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I have a work colleague and friend who sometimes acts as a consultant with Interesource, she is blind, and this week I received a Facebook friend request from her. I was overjoyed and thought 'great she's got in here', knowing how inaccessible Facebook is.

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It appears that spammers have found a way of automatically creating Hotmail and Yahoo email accounts, having already created more than 15,000 bogus Hotmail accounts, according to security company BitDefender.

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What s this I call it Anti-Captcha. The idea is that only a robot would be stupid enough to enter all that crap when you ask it, so you can reliably filter for humans. Patents pending.

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On the Internet, nobody knows you're a human — until you fill out a captcha.

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Carnegie Mellon researchers have launched a new service that will not only protect e-mail addresses on the web from spambots, but also help digitize a backlog of old books, magazines, and newspapers so that they can eventually be computer searchable.

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Why the resurgence of spam

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Finally, something seemed to be going right for the National Hockey League. Despite flagging attendance and abysmal television ratings, the league was headed into next week's midseason break on a wave of positive publicity.

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CAPTCHA stands for Completely Automated Public Turing test to tell Computers and Humans Apart. Social bookmarking sites are often hesitant in using CAPTCHA for several reasons.

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