Monday, December 28, 2015

Netiquette IQ Technical Term Of The Day - CAPTCHA



 CAPTCHA (Completely Automated Public Turing Test to tell Computers and Humans Apart) definition
Posted by: Margaret Rouse
A CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) is a challenge-response system test designed to differentiate humans from automated programs. A CAPTCHA differentiates between human and bot by setting some task that is easy for most humans to perform but is more difficult and time-consuming for current bots to complete.
CAPTCHAs are often used to stop bots and other automated programs from using blogs (see splog) to affect search engine rankings, signing up for e-mail accounts to send out spam or take part in on-line polls.
Frequently, a CAPTCHA features an image file of slightly distorted alphanumeric characters. A human can usually read the characters in the image without too much difficulty. A bot program is able to recognize that the content contains an image , but it has no idea what the image is. To accomodate the visually-impaired, some CAPTCHAs use audio files. In such a system, the human listens to a series of letters or short words and types what he hears to prove he is not a bot.
What you see above is an example of a CAPTCHA program called E-Z Gimpy. Although it is one of the most commonly used CAPTCHAs, it is also the easiest to crack by using a dictionary attack. The full edition of GIMPY is considered to be more secure. It randomly selects seven words from a dictionary and then presents them, somewhat distorted, in an image. The user is asked to type three of the words that appear in the image.
Another test, "Pix," presents the user with six images of a single subject, such as babies or horses, and asks them to define the subject of the pictures. Math CAPTCHAs are very popular on blog software. A Math CAPTCHA uses numbers instead of letters and asks the human to solve a simple mathematical calculation (4 +3 =) and record the answer.
Once a user has completed a particular CAPTCHA challenge satisfactorily, he is granted access. His address or login information may be added to a whitelist so that he is not asked to take the test on his next visit.

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 For a great parody on email see this site:
https://www.youtube.com/watch?v=HTgYHHKs0Zwscoop_post=bcaa0440-2548-11e5-c1bd-90b11c3d2b20&__scoop_topic=2455618



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In addition to this blog, Netiquette IQ has a website with great assets which are being added to on a regular basis. I have authored the premiere book on Netiquette, “Netiquette IQ - A Comprehensive Guide to Improve, Enhance and Add Power to Your Email". My new book, “You’re Hired! Super Charge Your Email Skills in 60 Minutes. . . And Get That Job!” has just been published and will be followed by a trilogy of books on Netiquette for young people. You can view my profile, reviews of the book and content excerpts at:

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In addition to this blog, I maintain a radio show on BlogtalkRadio  and an online newsletter via paper.li.I have established Netiquette discussion groups with Linkedin and  Yahoo I am also a member of the International Business Etiquette and Protocol Group and Minding Manners among others. I regularly consult for the Gerson Lehrman Group, a worldwide network of subject matter experts and I have been contributing to the blogs Everything Email and emailmonday . My work has appeared in numerous publications and I have presented to groups such as The Breakfast Club of NJ and  PSG of Mercer County, NJ.


I am the president of Tabula Rosa Systems, a “best of breed” reseller of products for communications, email, network management software, security products and professional services.  Also, I am the president of Netiquette IQ. We are currently developing an email IQ rating system, Netiquette IQ, which promotes the fundamentals outlined in my book.

Over the past twenty-five years, I have enjoyed a dynamic and successful career and have attained an extensive background in IT and electronic communications by selling and marketing within the information technology marketplace.Anyone who would like to review the book and have it posted on my blog or website, please contact me paul@netiquetteiq.com.
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