The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 24, 2015

Filed:

Oct. 17, 2012
Applicant:

Google Inc., Mountain View, CA (US);

Inventor:

Matthew D. Cutts, Los Altos, CA (US);

Assignee:

Google Inc., Mountain View, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for generating activity signatures and detecting activity replays. In one aspect, a method includes accessing activity data first and second activity sequences; generating a first activity sequence signature from the first activity sequence, and generating, for each second activity sequence, a respective second activity sequence signature from the second activity sequence; for each second activity sequence, determining a similarity measure that is a measure of similarity of the first activity sequence to the second activity sequence from the signatures; for each second activity sequence having a similarity measure that meets a threshold, determining that a security violation occurred during the second user session of the second activity sequence; and for each second activity sequence having a similarity measure that does not meet the threshold, determining that a security violation did not occur during the second user session.


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