ISSUING NOTIFICATIONS ABOUT LOST DEVICES

1 . A method for notifying a user of a location of a device, the method comprising:

receiving a first location of a first device;

determining, by one or more processors, that the first device has been separated from a user of the first device;

determining, by one or more processors, a second device located at, within a first predetermined threshold, the first location; and

sending, by one or more processors, a first notification to the second device, wherein the notification includes, at least, that the first device is located nearby.

2 . The method of claim 1 , further comprising:

analyzing, by one or more processors, data associated with the user of the first device, wherein the data includes a destination of the user;

determining, by one or more processors, a projected location of the user of the first device based on, at least, the data;

determining, by one or more processors, a third device located at, within a second predetermined threshold, the projected location; and

sending, by one or more processors, a second notification to the third device, wherein the second notification includes, at least, information indicating the location of the first device.

3 . The method of claim 1 , wherein determining that the first device has been separated from the user of the first device comprises:

receiving an indication that a wireless communication link between the first device and a third device has been severed; and

determining, by one or more processors, that the first device has been separated from the user of the first device based on, at least, the received indication.

4 . The method of claim 2 , wherein determining the projected location of the user of the first device is further based on the first location of the first device, an amount of time that has elapsed since determining that the first device has been separated from a user of the first device, and an estimated travel speed of the user.

5 . The method of claim 1 , wherein the first device and the second device are each registered devices, wherein a registered device includes identification information for the registered device and periodically updates a location of the registered device.

6 . A computer program product for notifying a user of a location of a device, the computer program product comprising:

one or more computer readable storage media and program instructions stored on the one or more computer readable storage media, the program instructions comprising:

program instructions to receive a first location of a first device;

program instructions to determine that the first device has been separated from a user of the first device;

program instructions to determine a second device located at, within a first predetermined threshold, the first location; and

program instructions to send a first notification to the second device, wherein the notification includes, at least, that the first device is located nearby.

7 . The computer program product of claim 6 , further comprising:

program instructions, stored on the one or more computer readable storage media, to analyze data associated with the user of the first device, wherein the data includes a destination of the user;

program instructions, stored on the one or more computer readable storage media, to determine a projected location of the user of the first device based on, at least, the data;

program instructions, stored on the one or more computer readable storage media, to determine a third device located at, within a second predetermined threshold, the projected location; and

program instructions, stored on the one or more computer readable storage media, to send a second notification to the third device, wherein the second notification includes, at least, information indicating the location of the first device.

8 . The computer program product of claim 6 , wherein program instructions to determine that the first device has been separated from the user of the first device comprise:

program instructions to receive an indication that a wireless communication link between the first device and a third device has been severed; and

program instructions to determine that the first device has been separated from the user of the first device based on, at least, the received indication.

9 . The computer program product of claim 7 , wherein program instructions to determine the projected location of the user of the first device is further based on the first location of the first device, an amount of time that has elapsed since determining that the first device has been separated from a user of the first device, and an estimated travel speed of the user.

10 . The computer program product of claim 6 , wherein the first device and the second device are each registered devices, wherein a registered device includes identification information for the registered device and periodically updates a location of the registered device.

11 . A computer system for notifying a user of a location of a device, the computer system comprising:

one or more computer processors, one or more computer readable storage media, and program instructions stored on the computer readable storage media for execution by at least one of the one or more processors, the program instructions comprising:

program instructions to receive a first location of a first device;

program instructions to determine that the first device has been separated from a user of the first device;

program instructions to determine a second device located at, within a first predetermined threshold, the first location; and

program instructions to send a first notification to the second device, wherein the notification includes, at least, that the first device is located nearby.

12 . The computer system of claim 11 , further comprising:

program instructions, stored on the computer readable storage media for execution by at least one of the one or more processors, to analyze data associated with the user of the first device, wherein the data includes a destination of the user;

program instructions, stored on the computer readable storage media for execution by at least one of the one or more processors, to determine a projected location of the user of the first device based on, at least, the data;

program instructions, stored on the computer readable storage media for execution by at least one of the one or more processors, to determine a third device located at, within a second predetermined threshold, the projected location; and

program instructions, stored on the computer readable storage media for execution by at least one of the one or more processors, to send a second notification to the third device, wherein the second notification includes, at least, information indicating the location of the first device.

13 . The computer system of claim 11 , wherein program instructions to determine that the first device has been separated from the user of the first device comprise:

program instructions to receive an indication that a wireless communication link between the first device and a third device has been severed; and

program instructions to determine that the first device has been separated from the user of the first device based on, at least, the received indication.

14 . The computer system of claim 12 , wherein program instructions to determine the projected location of the user of the first device is further based on the first location of the first device, an amount of time that has elapsed since determining that the first device has been separated from a user of the first device, and an estimated travel speed of the user.

15 . The computer system of claim 11 , wherein the first device and the second device are each registered devices, wherein a registered device includes identification information for the registered device and periodically updates a location of the registered device.