US 11,750,607 B2
Identifying accounts having shared credentials
Kapil Yedidi, San Francisco, CA (US); Anton Mityagin, San Francisco, CA (US); Sean Byrne, San Francisco, CA (US); and Andrew Scheff, San Francisco, CA (US)
Assigned to Dropbox, Inc., San Francisco, CA (US)
Filed by Dropbox, Inc., San Francisco, CA (US)
Filed on May 28, 2021, as Appl. No. 17/303,444.
Application 17/303,444 is a continuation of application No. 16/576,006, filed on Sep. 19, 2019, granted, now 11,082,426.
Application 16/576,006 is a continuation of application No. 15/166,194, filed on May 26, 2016, granted, now 10,469,497, issued on Nov. 5, 2019.
Prior Publication US 2021/0288961 A1, Sep. 16, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 9/40 (2022.01)
CPC H04L 63/0884 (2013.01) [H04L 63/083 (2013.01); H04L 63/0876 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
obtaining, by a computing system, login context data from a user device, the login context data corresponding to an attempt to log in to a user account managed by the computing system;
creating, by the computing system, a fingerprint for the user device;
storing, by the computing system, the login context data and the fingerprint in association with an account identifier corresponding to the user account;
storing historical login context data corresponding to a plurality of login attempts associated with the user account;
in response to the attempt to log in to the user account:
generating, by the computing system, a first value using a first login metric based on the historical login context data associated with the user account and based on the fingerprint of the user device; and
based on the first value, initiating, by the computing system, a remedial action for the user account.