Abstract: Various aspects involve determining legitimacy of an email address for risk assessment or other purposes. For instance, a risk assessment computing system receives a risk assessment query that identifies an email address. The risk assessment computing system determines a set of features for the email address. For each feature, the risk assessment computing system calculates an illegitimacy score by calculating a deviation of the feature from an expected safe value for the feature that is determined from historical email addresses. The risk assessment computing system aggregates the illegitimacy scores of the plurality of features into an aggregated illegitimacy score and further transmits a legitimacy risk value to a remote computing system. The legitimacy risk value indicates the aggregated illegitimacy score and can be used in controlling access of a computing device associated with the email address to one or more interactive computing environments.

Abstract: A method described herein involves various operations directed toward network security. The operations include accessing a traffic attribute describing a feature of network traffic. The operations further include determining a baseline distribution for the traffic attribute of a baseline set of transactions involving an online system over a baseline period and, additionally, determining an observed distribution for the traffic attribute of an observed set of transactions involving the online system over an observed period. Using the observed distribution and the baseline distribution, an attribute risk value for the traffic attribute is computed. The operations further include detecting that an anomaly exists in the traffic attribute of the observed set of transactions, based on the attribute risk value.

Abstract: Systems and methods for storing information in a web browser by dynamically generating service worker codes are provided. In one example, an online system receives a request from a client device to store data included in the request in a service worker code. The online system modifies a source code of a particular service worker code to include the data to be stored and transmits the modified service worker code to the client device. The client device receives and stores the modified service worker code embedded with the data. The client device receives a request for a particular data associated with a web page and determines that the modified service worker code contains the requested particular data. The client device retrieves the requested particular data from the modified service worker code and updates the web page with the retrieved particular data.

Abstract: A method described herein involves various operations directed toward network security. The operations include accessing transaction data describing network traffic associated with a web server during an interval. Based on a count of new transactions involving an online entity during the interval according to the transaction data, a short-term trend is determined for the online entity. The operations further include applying exponential smoothing to a history of transactions of the online entity to compute a long-term trend for the online entity. Based on a comparison between the short-term trend and the long-term trend for the online entity, an anomaly is detected with respect to the online entity in the network traffic associated with the web server. Responsive to detecting the anomaly, an access control is implemented between the online entity and the web server.

Abstract: Online entities oftentimes desire to ascertain information about their audience members. To determine information about audience members and their activities, online transactions including information about transactions performed by audience members are collected. One or more audience analysis processes are applied to the online transactions to determine the collection of online transactions performed by a given audience member. With an accurate assignment of online transaction to the audience member, the audience member and associated transactions may be classified as a legitimate or illegitimate.

Abstract: A method and system for graphical enumeration. The method includes creating an ordered set of vertices for a graph such that each vertex is associated with a corresponding index, and wherein each vertex in the ordered set of vertices includes information. A plurality of keys is created for defining the information. A plurality of lists of vertices is created, each of which is associated with a corresponding key such that vertices in a corresponding list include information associated with the corresponding key. For a first list of vertices, a least valued index is determined from a group of associated vertices based on vertices in the first list and vertices pointed to by the vertices in the first list. Also, all associated vertices are pointed to a root vertex associated with the least valued index.

Abstract: An online machine data collection and archiving process generates a machine data profile of a customer computer accessing a transaction form of a merchant web site and links the machine data profile and a transaction record with customer identifying information using a unique transaction identification string. The process preferably captures parameters typically communicated as a part of web accesses, such as an IP address, an HTTP header, and cookie information. The process additionally causes the customer computer to process self-identification routines by processing coding within the merchant transaction form, the self-identification routines yielding further profile parameters. The process further includes a routine for bypassing an intervening proxy to the merchant web site to reveal the true IP address of the customer computer.

Abstract: A method and system for graphical enumeration. The method includes creating an ordered set of vertices for a graph such that each vertex is associated with a corresponding index, and wherein each vertex in the ordered set of vertices includes information. A plurality of keys is created for defining the information. A plurality of lists of vertices is created, each of which is associated with a corresponding key such that vertices in a corresponding list include information associated with the corresponding key. For a first list of vertices, a least valued index is determined from a group of associated vertices based on vertices in the first list and vertices pointed to by the vertices in the first list. Also, all associated vertices are pointed to a root vertex associated with the least valued index.

Abstract: A system establishes virtual DNS servers that are supported by a DNS server. Target IP addresses are assigned for the virtual DNS servers. Network capable devices are uniquely assigned to the virtual DNS servers for domain name resolution. Each network capable device accesses the communication network through a corresponding network device associated with a corresponding source IP address. A client's service plan is assigned to a first network capable device used by the client. The service plan is implemented through a DNS request under a session established between the first network capable device and its assigned first virtual DNS server. The session is uniquely identified by a first source IP address of a first network device used by the first network capable device to access the communication network and a first target IP address of the first virtual DNS server.

Abstract: Online entities oftentimes desire to ascertain information about their audience members. To determine information about audience members and their activities, online transactions including information about transactions performed by audience members are collected. One or more audience analysis processes are applied to the online transactions to determine the collection of online transactions performed by a given audience member. With an accurate assignment of online transaction to the audience member, the audience member and associated transactions may be classified as a legitimate or illegitimate.

Abstract: A system and method for providing, as a service over a computer network (especially a packet-switched computer network) to a body of merchants connected to the computer network, verification of consumer identification based on data provided over the computer network by scanning devices attached to the computers operated by consumers.

Abstract: An online machine data collection and archiving process generates a machine data profile of a customer computer accessing a transaction form of a merchant web site and links the machine data profile and a transaction record with customer identifying information using a unique transaction identification string. The process preferably captures parameters typically communicated as a part of web accesses, such as an IP address, an HTTP header, and cookie information. The process additionally causes the customer computer to process self-identification routines by processing coding within the merchant transaction form, the self-identification routines yielding further profile parameters. The process further includes a routine for bypassing an intervening proxy to the merchant web site to reveal the true IP address of the customer computer.

Abstract: A method and system for graphical enumeration. The method includes creating an ordered set of vertices for a graph such that each vertex is associated with a corresponding index, and wherein each vertex in the ordered set of vertices includes information. A plurality of keys is created for defining the information. A plurality of lists of vertices is created, each of which is associated with a corresponding key such that vertices in a corresponding list include information associated with the corresponding key. For a first list of vertices, a least valued index is determined from a group of associated vertices based on vertices in the first list and vertices pointed to by the vertices in the first list. Also, all associated vertices are pointed to a root vertex associated with the least valued index.

Abstract: A system establishes virtual DNS servers that are supported by a DNS server. Target IP addresses are assigned for the virtual DNS servers. Network capable devices are uniquely assigned to the virtual DNS servers for domain name resolution. Each network capable device accesses the communication network through a corresponding network device associated with a corresponding source IP address. A client's service plan is assigned to a first network capable device used by the client. The service plan is implemented through a DNS request under a session established between the first network capable device and its assigned first virtual DNS server. The session is uniquely identified by a first source IP address of a first network device used by the first network capable device to access the communication network and a first target IP address of the first virtual DNS server.

Abstract: A method for providing an online reputation is disclosed. An online credential service assigns a unique client identifier to each user and a unique forum identifier to each forum that users participate. A user participating in one or more online forums registers for establishing a reputation profile at the online credential service. A unique verification code associated with each forum is generated for the user to include in the user's profile at the corresponding forum. A user's reputation is determined based on whether a verification code is included in the user's profile at the form.

Abstract: A system and method for providing, as a service over a computer network (especially a packet-switched computer network) to a body of merchants connected to the computer network, verification of consumer identification based on data provided over the computer network by scanning devices attached to the computers operated by consumers.

Abstract: A method and system for providing the centralized collection of click-through traffic information. The method includes receiving a DNS query for a domain name at a third party auditing service from a requesting computing resource. The domain name is configured to include click-through information as a subdomain, and wherein a URL associated with the domain name provides content. The click-through information is parsed from the domain name without establishing a connection between said third party auditing server and any web server providing the content. An IP address for the web server associated with the domain name is sent to the requesting computing resource.

Abstract: Online entities oftentimes desire to ascertain information about their audience members. To determine information about audience members and their activities, online transactions including information about transactions performed by audience members are collected. One or more audience analysis processes are applied to the online transactions to determine the collection of online transactions performed by a given audience member. With an accurate assignment of online transaction to the audience member, the audience member and associated transactions may be classified as a legitimate or illegitimate.

Abstract: A method for providing an online reputation is disclosed. An online credential service assigns a unique client identifier to each user and a unique forum identifier to each forum that users participate. A user participating in one or more online forums registers for establishing a reputation profile at the online credential service. A unique verification code associated with each forum is generated for the user to include in the user's profile at the corresponding forum. A user's reputation is determined based on whether a verification code is included in the user's profile at the form.

Abstract: A method and system for providing the centralized collection of click-through traffic information. The method includes receiving a DNS query for a domain name at a third party auditing service from a requesting computing resource. The domain name is configured to include click-through information as a subdomain, and wherein a URL associated with the domain name provides content. The click-through information is parsed from the domain name without establishing a connection between said third party auditing server and any web server providing the content. An IP address for the web server associated with the domain name is sent to the requesting computing resource.