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Methods and systems for phishing detection

  • US 9,398,047 B2
  • Filed: 11/17/2014
  • Issued: 07/19/2016
  • Est. Priority Date: 11/17/2014
  • Status: Active Grant
First Claim
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1. A method of determining a probability that a received email comprises a phishing attempt, comprising:

  • receiving an email,analyzing a link within the email to determine whether the link comprises a phishing attempt by;

    comparing at least some features of the link with records stored in a remote database to determine whether the link comprises a phishing attempt and determining that the link comprises a phishing attempt if the compared features match the records stored in the remote database;

    building a multi-dimensional input vector from at least features of the link if the compared features do not match the records stored in the remote database and evaluating a plurality of the features of the link to set or reset at least one bit of the multi-dimensional input vector;

    inputting the built multi-dimensional input vector into a phishing probability engine;

    computing, in the phishing probability engine, a probability that the link comprises a phishing attempt; and

    acting upon the received email depending upon the computed probability that the link comprises a phishing attempt.

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