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| New Age Spam |
| Tuesday, 10 July 2007 |
Spamming is the abuse of electronic messaging systems to send unsolicited bulk messages, which are generally undesired. While the most widely recognized form of spam is email spam,the term is applied to similar abuses in other media as well.
Spamming is economically viable because advertisers have no operating costs beyond the management of their mailing lists, and it is difficult to hold senders accountable for their mass mailings.
Hotmail,Yahoo,Gmail and other popular email services,in order to fight spam, have enhanced their junk email protection considerably.Most of the spam is rightfully kept within limits of your junk box and not allowed to reach your inbox along with regular mail.
So how does your junk filter do this?
When you receive a mail,the junk filter automatically scans your email for certain blocked words.These blocked words are those which are regularly used by spammers to advertise their products.Over a period of time your junk filter program builds a dictionary of such blocked words and increases your spam protection.An example of blocked
word is viagra.Often,in order to prevent easy detection,such words are incorrectly spelled.eg.Viagra is spelled as V.iagra, vi.agra or viagr@, etc
But,with enhanced protection,mails containing this form of blocked words are directed to junk box.
The latest in spamming is image spamming.Given below is an example of image spamming.
 Fido stood on its hind legs-then jumped high into the air despite
In image spamming, an image advertising the spammer's product is sent to you.The junk filter program cannot verify the text within the image and allows it to pass.Certain junk filter programs use OCR(optical character recognition) , which recognizes characters within images to block such spam.However ,spammers have found a way around this as well.You will notice that their are light colorful streaks in above image.Such streaks fool the OCR software.
The text within the email body is completely unrelated to spammer's product and contains no blocked words.(given in bold and italics below the image)
As there are no links ,the spam receiver may be asked to goto a particular address specified in the image.
Thus,in this way, spammers have found a new way to invade your inbox.
The above image spam was received in an Hotmail inbox. |
posted by ND @ 2:14 pm  |
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| 1 Comments: |
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Thank you for this Info !
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Thank you for this Info !