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Anonymous e-mail senders can be identified

March 8, 2011 at 11:44 PM   |   Comments

MONTREAL, March 8 (UPI) -- Researchers in Montreal say they have developed a way to identify authors of anonymous e-mails that could be admissible as evidence in court.

"In the past few years, we've seen an alarming increase in the number of cybercrimes involving anonymous e-mails … (that) can transmit threats or child pornography, facilitate communications between criminals or carry viruses," said Benjamin Fung, a data mining expert and professor of Information Systems Engineering at Concordia University in Montreal, the school said Tuesday.

Fung and his team created a way to locate an anonymous sender by using speech recognition and data mining, which involves gleaning useful, previously unknown information from a large volume of raw data.

An anonymous e-mail suspect may be identified through patterns -- misspellings, grammatical errors, the use of only lower-case letters, etc. -- found in other e-mails written by the suspect, the school said. Investigators would then filter out any of these patterns also found in the e-mails of other suspects.

The remaining frequent patterns amount to the suspect's "write-print," which is unique and similar to a fingerprint.

"Using this method, we can even determine with a high degree of accuracy who wrote a given e-mail, and infer the gender, nationality and education level of the author," Fung said. "For evidence to be admissible (in a court of law), investigators need to explain how they have reached their conclusions. Our method allows them to do this."

© 2011 United Press International, Inc. All Rights Reserved. Any reproduction, republication, redistribution and/or modification of any UPI content is expressly prohibited without UPI's prior written consent.
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