Abstract: A server computer system receives mobile device activity data from a mobile device. The server computer system verifies that the mobile device activity data matches mobile device activity data that is stored at the mobile device and generates a shared secret at the server computer system using the received mobile device activity data. The shared secret at the server computer system matches a shared secret generated at the mobile device.

Abstract: Multiple smart meters periodically measure strengths of detected signals generated by fixed position wireless devices. A centrally located location determining system receives this data, and correlates received strengths of the signals generated by the specific fixed position wireless devices with the physical locations of the measuring smart meters. Periodically, updated signal strengths are received, and stored correlations are replaced with updated correlations. Strengths of signals generated by fixed position wireless devices are received from a mobile computing device, as measured by the mobile device. The location determining system compares the signal strengths received from the mobile computing device to the most current strengths of signals of the same fixed position wireless devices, as measured by multiple smart meters, so as to perform triangulation and determine the physical location of the mobile device.

Abstract: A physical location rating management system automatically calculates reputation scores for physical locations. A plurality of types of data concerning a plurality of physical locations are collected from a plurality of sources. It is determined to which specific physical location specific collected data pertains. Specific score adjustment factors quantifying adjustments to make to reputation scores are determined for multiple, specific physical locations, based on specific collected data. Score adjustment factors can be determined by, for example, performing keyword scoring and/or automated document classification of specific collected data. The determined score adjustment factors for each of the multiple, specific physical locations are aggregated, in real time, as the score adjustment factors are determined. Specific reputation scores for specific physical locations are calculated, based on the aggregated score adjustment factors for the specific physical locations.

Abstract: Information is received from a set of peer clients associated with a client, the information indicating likelihoods of peer client exposure to malware threats. An environmental safety score associated with the client is determined based, at least in part, on the information received from the set of peer clients, wherein the environmental safety score indicates a likelihood that the client is exposed to malware threats. A set of malware signatures is retrieved from the server at a time determined responsive to the environmental safety score and stored.

Abstract: The accuracy of geotag information embedded in digital photographs is reduced. Network traffic is monitored, and transmission of a file stream comprising a digital photograph is identified. A geotag is identified in the file stream, as well as integrity verification information. It is determined that the identified geotag corresponds to a private location. The identified geotag is modified so as to reduce the accuracy of its content. Once the geotag is modified, the integrity verification information is updated to account for the modified geotag.

Abstract: A reputation system generates reputation scores for websites based at least in part on analyses of disposable data misuse associated with the websites. The reputation system receives reports describing disposable data misuses detected by clients and/or other entities, such as credit card issuers. The reputation system also detects certain types of misuse itself by analyzing received disposable data involved in a misuse detection to determine the websites or other entities that misused the data. The reputation system generates misuse statistics describing the amount of data misuse performed by websites. The reputation system generates reputation scores for websites based on the disposable data misuse statistics and, optionally, other reputation information for the websites, such as malware distribution associated with the websites. The reputation system reports the reputations of the websites to the clients.

Abstract: A threat detection event indicating a detection of a malware entity is identified at a client. Threat information associated with the malware entity is identified responsive to the threat detection event, the threat information for detecting the malware entity, wherein at least some of the threat information is unaffected by variance associated with the malware entity. The threat information is reported to a peer client of the client. Peer threat information describing a peer malware entity detected at the peer client is received at the client from the peer client via a network and used to examine the client for the peer malware entity.

Abstract: Computer-implemented methods, apparati, and computer-readable media for countering spam that disguises characters within an electronic message (1). A method embodiment of the present invention comprises locating (36) portions of an electronic message (1) where the difference between foreground color and background color is negligible; deleting (37) from the electronic message (1) foreground characters from said portions, to form a redacted electronic message; and forwarding (33) the redacted electronic message to a spam filter (23).

Abstract: Computer implemented methods, apparati, and computer readable media for suppressing spam entering a computing device. A method embodiment comprises the steps of routing an electronic message leaving the computing device to a machine learning based spam filter defining the message to be clean; and training the filter, with the message being an input to the filter.

Abstract: A client communicates with a website usage server via a network to gain access to an account on a website. The client requests an indication of whether user access to the account on the website is permitted. The website usage server determines whether website usage is permitted based at least in part on a website usage policy associated with the website and the user. The website usage server provides restricted authentication credentials to the website responsive to determining that access to the account is permitted.