US 11,886,563 B2
Continuous authentication system and related methods
Andrew James Malton, Waterloo (CA); and Andrew Eric Walenstein, Issaquah, WA (US)
Assigned to BlackBerry Limited, Waterloo (CA)
Filed by BlackBerry Limited, Waterloo (CA)
Filed on Feb. 14, 2023, as Appl. No. 18/109,329.
Application 18/109,329 is a continuation of application No. 16/719,258, filed on Dec. 18, 2019, granted, now 11,599,611.
Prior Publication US 2023/0195873 A1, Jun. 22, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 21/00 (2013.01); G06F 21/32 (2013.01); G06F 21/31 (2013.01)
CPC G06F 21/32 (2013.01) [G06F 21/316 (2013.01); G06F 2221/2103 (2013.01); G06F 2221/2113 (2013.01); G06F 2221/2139 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A continuous authentication method, comprising:
determining a security value of a requested user action;
in response to the request to perform the user action, determining a subsequent session security level based on the security value of the requested user action and a session security level;
in response to a determination that the subsequent session security level is greater than or equal to a threshold session security level, permitting the requested user action and adjust the session security level based on the security value of the requested user action; and
in response to a determination that the subsequent session security level is less than the threshold session security level, causing a user authentication challenge:
in response to a successful user authentication challenge, permitting the requested user action and adjust the session security level based on one or both of the security value of the requested user action and a security value of a successful user authentication challenge; and
in response to an unsuccessful user authentication challenge, rejecting the user action.