Amazon Technologies, Inc.

Martin Matthew O'Reilly

Dominique Imjya Brezinski

Cyrus John Durgin

Emilia Sorana Buneci

Benjamin S Kirzhner

Lane R LaRue

George Nikolaos Stathakopoulos

Robert Hanna Mahfoud

Francesco Russo

Techniques for user authentication are disclosed. In some situations, the techniques include receiving, from a client device, an authentication request to access a network resource, the request including a user identifier, obtaining a security credential associated with the user identifier contained in the received request, generating an authorization code based on the obtained security credential, providing to the client device instructions to obtain first information corresponding to the generated authorization code, receiving, from the client device, the first information provided in response to the provided instructions, and, when the first information received from the client device corresponds to at least a portion of the generated authorization code, authorizing the client device to access the network resource.

Techniques for user authentication

Information security may include defending information from unauthorized access, use, disclosure, modification, destruction, and so forth. Described herein are systems, methods and devices for enabling a user device to implement functions for dynamically identifying and reacting to potentially malicious activity. In one example, a user device configures a sentinel node to identify potentially malicious behavior by causing the sentinel node to analyze data from selected emitter nodes and selected algorithms. The user device may also specify how the sentinel node reacts to potential malicious activity.

Systems and methods identifying and reacting to potentially malicious activity

A plurality of phrases may be extracted from documents associated with one or more document sources. The plurality of phrases may be filtered and processed to determine a frequency in which the plurality of phrases appear in the documents and/or a number of the document sources in which each phrase appears. A weight may be assigned to each of the phrases and, based at least in part on the assigned weight, a visual representation of the plurality of phrases may be presented. The visual representation may be dynamically updated based at least in part on an updated frequency or an updated total number of document sources associated with any one of the plurality of phrases.

Dynamic visual representation of phrases

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Dublin, Ireland

Martin Matthew O'Reilly