Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for enabling a virtual lobby. In some implementations, a server receives a request from a first client device to enter a function of a virtual lobby. The server generates a pre-selected number of users to include in the function of the virtual lobby based on a plurality of client devices that opted into the function. The server provides data to each of the pre-selected number of users to indicate an acceptance into the function. The server generates a first communication channel between the first client device and a second client device, wherein the communication channel ensures other users cannot access communications between the first and the second client device. In response to closing the first communication channel, the server generates a second communication channel between the first and the second client device outside the virtual lobby.

Abstract: Enables trusted user access of computer systems for example that verifies trusted users and may allow trusted users to bypass challenge-response tests, while limiting access by automated processes and unwanted human challenge-response test solvers. Embodiments may implement an account that may be utilized across websites to enable a valid or trusted user to bypass challenge-response tests. Embodiments of the invention cost time, or cost a nominal fee, or require use of something that may be validated as owned by a user such as a physical address or cell phone, or trusted referral or social graph or any combination thereof, but cost large amounts time or money for spammers using cheap third world labor, thus making it expensive to invoke attacks on sites protected by embodiments of the invention.

Abstract: Enables trusted user access of computer systems for example that verifies trusted users and may allow trusted users to bypass challenge-response tests, while limiting access by automated processes and unwanted human challenge-response test solvers. Embodiments may implement an account that may be utilized across websites to enable a valid or trusted user to bypass challenge-response tests. Embodiments of the invention cost time, or cost a nominal fee, or require use of something that may be validated as owned by a user such as a physical address or cell phone, or trusted referral or social graph or any combination thereof, but cost large amounts time or money for spammers using cheap third world labor, thus making it expensive to invoke attacks on sites protected by embodiments of the invention.