Facebook, Inc.

Jason Scott Sobel

Miladin Pavlicic

Mohit Talwar

Rose Yao

Siddharth Murlidhar

Sanjeev Kumar

Peter Vajgel

Jeffrey Rothschild

Philippe Vincent Ajoux

Robert Carlton Johnson

Yee Jiun Song

Harry Li

Rajesh Nishtala

Greg D Schechter

Vladimir Fedorov

Benjamin Golub

Greg Schecter

In particular embodiments, a mailbox server is operable to receive, from a client, a message to be delivered to an endpoint; store the message in a mailbox associated with the user; access a set of policies for the client or the endpoint; determine a delivery channel for the message based on the policies; and transmit the message to the endpoint through the delivery channel. In particular embodiments, the mailbox server may transmit SMS messages via a special bind with a recipient's SMSC, or via a carrier short code. In particular embodiments, the mailbox server may transmit the message as an email or via an internal messaging system over a packet data connection.

Proxied outgoing message transmission

In particular embodiments, a method may include automatically determining that a mobile computing device is unlocked and away from a pre-determined trusted user associated with the mobile computing device, where the determining that the mobile computing device is away from the pre-determined trusted user is based on communication between the mobile computing device and an identification device carried by the trusted user, and by the mobile computing device, automatically erasing all software and data on the mobile computing device. The identification device may include a BLUETOOTH fob, a Near-Field Communication (NFC) tag, or a Radio-Frequency Identification (RFID) tag. The method may include communicating with the identification device to verify that the identification device is in a vicinity of the mobile computing device. The communication may be via a communication protocol such as BLUETOOTH, a Near-Field Communication (NFC), or Radio-Frequency Identification (RFID).

Mobile device auto wipe

An online system enables developers of third-party applications to specify online system users to receive advertisements. The online system generates and sends a user-specific identifier for online system users that use a third-party application when an advertiser associated with the third-party application requests a user-specific identifier from the online system. For example, the online system retrieves user identifying information associated with a client device identifier provided by an advertiser and generates a user identifier by encrypting the retrieved user identifying information. The advertiser may include one or more user-specific identifiers in an advertisement request sent to an online system to present an advertisement in the advertisement request to online system users corresponding to the user-specific identifiers. The online system determines whether to present the advertisement to users based in part on whether users correspond to user-specific identifiers included in the advertisement request.

Targeting advertisements to customized groups of users of an online system

In particular embodiments, a mailbox server is operable to receive, from a client, a message to be delivered to an endpoint; store the message in a mailbox associated with the user; access a set of policies for the client or the endpoint; determine a delivery channel for the message based on the policies; and transmit the message to the endpoint through the delivery channel. In particular embodiments, the mailbox server may transmit SMS messages via a special bind with a recipients SMSC, or via a carrier short code. In particular embodiments, the mailbox server may transmit the message as an email or via an internal messaging system over a packet data connection.

When multiple regional data clusters are used to store data in a system, maintaining cache consistency across different regions is important for providing a desirable user experience. In one embodiment, there is a master data cluster where all data writes are performed, and the writes are replicated to each of the slave data clusters in the other regions. Appended to the replication statements are invalidations for cache values for the keys whose values have been changed in the master data cluster. An apparatus in the master data cluster logs replication statements sent to the slave databases. When a slave database fails, the apparatus extracts the invalidations intended for the failed database and publishes the invalidations to a subscriber in the region of the failed database. The subscriber sends the invalidations to the local caches to cause stale data for those keys to be deleted from the caches.

System and method for implementing cache consistent regional clusters

A mobile computing device may automatically determine an occurrence of a security event associated with the device, and automatically erase all software and data on the device. The security event may be the mobile computing device being unlocked and away from a trusted location or user associated with the device, or the device moving a pre-determined distance over a pre-determined amount of time while unlocked, or a user performing an incorrect touch gesture to unlock the mobile computing device, or entry of an incorrect password a pre-determined consecutive number of times. The mobile computing may display a visual cue to the user to prompt the user to perform the incorrect touch gesture. Software and data on the mobile computing device may be automatically erased without receiving instructions from another computing device, or may be erased when the mobile computing device establishes a network connection with another computing device.

A data object management scheme for storing a large plurality of small data objects (e.g., image files) in small number of large object stack file for storage in secondary storage (e.g., hard disks). By storing many individual data objects in a single object stack file, the number of files stored in the secondary storage is reduced by several orders of magnitude, from the billions or millions to the hundreds or so. Index data for each object stack file is generated and stored in primary storage to allow efficient and prompt access to the data objects. Requests to store or retrieve the data objects are made using HTTP messages including file identifiers that identify the files storing the data objects and keys identifying the data objects. A file server stores or retrieves the data object from secondary storage of a file server without converting the requests to NSF or POSIX commands.

Growing community of inventors

San Francisco, CA, United States of America

Jason Scott Sobel