System and methods for detecting malicious email transmission

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United States of America Patent

PATENT NO 8931094
SERIAL NO

13848529

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Abstract

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A system and methods of detecting an occurrence of a violation of an email security policy of a computer system. A model relating to the transmission of prior emails through the computer system is defined which is derived from statistics relating to the prior emails. For selected emails to be analyzed, statistics concerning the selected email are gathered. Such statistics may refer to the behavior or other features of the selected emails, attachments to emails, or email accounts. The determination of whether a violation of an email security policy has occurred is performed by applying the model of prior email transmission to the statistics relating to the selected email. The model may be statistical or probabilistic. A model of prior email transmission may include grouping email recipients into cliques. A determination of a violation of a security policy may occur if email recipients for a particular email are in more than one clique.

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Patent Owner(s)

  • THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bhattacharyya, Manasi Flushing, US 8 858
Eskin, Eleazar Santa Monica, US 26 2390
Herskop, Shlomo Brooklyn, US 6 452
Stolfo, Salvatore J Ridgewood, US 127 11677

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