Google Inc.

Daniel Margolis

Michael Christopher Hearn

Aleksandr Mistratov

Alon Altman

Oded Shahar

A method of verifying an account login request may include identifying one or more Internet Protocol (IP) addresses as potentially malicious and, for each identified IP address, determining a first value equal to a number of times over a period of time that the IP address was identified by the computing device as potentially malicious, determining a second value equal to a number of times over the period of time that the IP address was confirmed to be potentially malicious by one or more account users, determining a proportion value associated with the IP address by determining a ratio of the second value to the first value, labeling the IP address as safe or unsafe based on at least the proportion value associated with the IP address, and maintaining, by the computing device, a list of the IP addresses and corresponding labels.

Methods and systems for performing dynamic risk analysis using user feedback

A system and method for recovering an account based at least in part on peer attestation are disclosed. In some implementations, the system includes a trusted contact identifier module, a user interaction module, a trusted contact interaction module and a message generation module. The trusted contact identifier module analyzes a contact database of a user and identifies a selection of trusted contacts that satisfied a pre-defined criteria. The user interaction module presents the selection of trusted contacts and receives from the user an input including at least one selected trusted contact and a personalized message composed by the user. The trusted contact interaction module transmits the personalized message and a hyperlink for verifying the identity of the user to the at least one selected trusted contact and receives a response therefrom. The message generation module sends a message to the user in response to receiving the response.

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Zurich, Switzerland

Daniel Margolis