Protecting against malicious discovery of account existence

A sign-in system can be protected against enumeration attacks while providing an improved sign-in experience for legitimate users by disclosing whether or not an account exists. An account within a specified domain can be identified by an account identifier such as a username. Before a threshold thr...

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Bibliographic Details
Main Authors Larson, Timothy Colin, Gordon, Ariel
Format Patent
LanguageEnglish
Published 21.04.2020
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
PHYSICS
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:A sign-in system can be protected against enumeration attacks while providing an improved sign-in experience for legitimate users by disclosing whether or not an account exists. An account within a specified domain can be identified by an account identifier such as a username. Before a threshold throttling value is reached, account existence/non-existence information can be provided in response to an access request. In response to reaching or exceeding a specified threshold throttling value, account existence/non-existence information can cease to be provided. Entering a valid account identifier/authenticating credential credentials pair provides access to the computer system regardless of whether or not the threshold was reached or exceeded or not reached.
Bibliography:Application Number: US201715822065