Device and method for prompting information about Wi-Fi signal

1. A device for prompting information about a Wi-Fi signal, the device comprising:

one or more non-transitory computer readable media configured to store computer-executable instructions; and

at least one processor to execute a plurality of software modules configured to execute the computer-executable instructions to cause;

receiving a notification message broadcast by an operating system of a terminal;

when the notification message displays that an event relevant to a target Wi-Fi signal occurs in the current terminal, determining whether the target Wi-Fi signal contains an unsafe factor by detecting attribute information of the target Wi-Fi signal; and

displaying prompt information about the target Wi-Fi signal when the target Wi-Fi signal contains the unsafe factor, the prompt information used for prompting about the unsafe factor contained in the Wi-Fi signal and/or a means for overcoming the unsafe factor;

wherein the event relevant to the target Wi-Fi signal occurring in the current terminal includes:

the current terminal searching out the target Wi-Fi signal; or

the current terminal accessing networks via the target Wi-Fi signal.

2. The device according to claim 1 , wherein the processor executes at least one of the software modules configured to execute the computer-executable instructions to cause:

detecting whether the target Wi-Fi signal is encrypted; and

determining that the target Wi-Fi signal contains an unsafe factor if the target Wi-Fi signal is not encrypted.

3. The device according to claim 1 , wherein the processor executes at least one of the software modules configured to execute the computer-executable instructions to cause:

detecting whether the target Wi-Fi signal is encrypted;

determining whether the name of the target Wi-Fi signal is in a preset white list if the target Wi-Fi signal is not encrypted, the white list storing names of known safe Wi-Fi signals; and

determining that the target Wi-Fi signal does not contain any unsafe factor if the name of the target Wi-Fi signal is in the white list.

4. The device according to claim 1 , wherein the processor executes at least one of the software modules configured to execute the computer-executable instructions to cause:

detecting whether the target Wi-Fi signal is encrypted;

determining whether the similarity between the name of the target Wi-Fi signal and the name of a certain known safe Wi-Fi signal in a preset white list reaches a preset threshold if the target Wi-Fi signal is not encrypted; and

if yes, then determining that the target Wi-Fi signal contains an unsafe factor.

5. The device according to claim 1 , wherein the processor executes at least one of the software modules configured to execute the computer-executable instructions to cause:

detecting whether the target Wi-Fi signal is encrypted;

determining whether the similarity between the name of the target Wi-Fi signal and the name of a certain known safe Wi-Fi signal in a preset white list reaches a preset threshold if the target Wi-Fi signal is not encrypted;

if yes, then determining whether the known safe Wi-Fi signal is also searched out by the current terminal; and

if yes, then determining that the target Wi-Fi signal contains an unsafe factor.

6. The device according to claim 1 , wherein the processor executes at least one of the software modules configured to execute the computer-executable instructions to cause:

obtaining, from a server, the number of times detected by the server that users report that the target Wi-Fi signal is not safe; and

determining that the target Wi-Fi signal contains an unsafe factor if the number of times reaches a preset threshold.

7. The device according to claim 1 , wherein the processor further executes one or more software modules configured to execute the computer-executable instructions to cause:

capturing first data information transmitted, at the terminal, by the user via the Wi-Fi signal with the unsafe factor;

encrypting and then transmitting, at the terminal, the captured first data information to a preset proxy server; and

decrypting and then transmitting, at the proxy server, the first data information, transmitted by the user, to a destination address.

8. The device according to claim 7 , wherein the processor further executes one or more software modules configured to execute the computer-executable instructions to cause:

receiving at the preset proxy server, second data information that is fed back by the destination address for the first data information, and encrypting and then transmitting the fed-back second data information to the terminal; and

receiving and then decrypting, at the terminal, the second data information returned by the proxy server, and processing the second data information obtained by decrypting as a feedback result of the first data information.

9. A non-transitory computer readable recording medium, having instructions stored thereon that, when executed by at least one processor, cause the at least one processor to perform operations for prompting information about a Wi-Fi signal, which comprise the steps of:

receiving a notification message which is broadcast by an operating system of a terminal;

when the notification message displays that an event relevant to a target Wi-Fi signal occurs in the current terminal, determining whether the target Wi-Fi signal contains an unsafe factor by detecting attribute information of the target Wi-Fi signal; and

if yes, displaying prompt information about the target Wi-Fi signal, the prompt information used for prompting about the unsafe factor contained in the Wi-Fi signal and/or a means for overcoming the unsafe factor;

wherein the event relevant to the target Wi-Fi signal occurring in the current terminal includes:

the current terminal searching out a target Wi-Fi signal; or

the current terminal accessing networks via the target Wi-Fi signal.

10. A method for prompting information about a Wi-Fi signal, the method comprising:

receiving a notification message broadcast by an operating system of a terminal;

when the notification message displays that an event relevant to a target Wi-Fi signal occurs in the current terminal, determining whether the target Wi-Fi signal contains an unsafe factor by detecting attribute information of the target Wi-Fi signal; and

if yes, displaying prompt information about the target Wi-Fi signal, the prompt information used for prompting about the unsafe factor contained in the Wi-Fi signal and/or a means for overcoming the unsafe factor;

wherein the event relevant to the target Wi-Fi signal occurring in the current terminal includes:

the current terminal searching out target Wi-Fi signal or the current terminal accessing networks via the target Wi-Fi signal.

11. The method according to claim 10 , wherein determining whether the target Wi-Fi signal contains an unsafe factor by detecting attribute information of the target Wi-Fi signal comprises:

detecting whether the target Wi-Fi signal is encrypted; and

determining that the target Wi-Fi signal contains an unsafe factor if the target Wi-Fi signal is not encrypted.

12. The method according to claim 10 , wherein determining whether the target Wi-Fi signal contains an unsafe factor by detecting attribute information of the target Wi-Fi signal comprises:

detecting whether the target Wi-Fi signal is encrypted;

determining whether the name of the target Wi-Fi signal is in a preset white list if the target Wi-Fi signal is not encrypted, the white list storing names of known safe Wi-Fi signals; and

determining that the target Wi-Fi signal does not contain any unsafe factor if the name of the target Wi-Fi signal is in the white list.

13. The method according to claim 10 , wherein determining whether the target Wi-Fi signal contains an unsafe factor by detecting attribute information of the target Wi-Fi signal comprises:

detecting whether the target Wi-Fi signal is encrypted;

determining whether the similarity between the name of the target Wi-Fi signal and the name of a known safe Wi-Fi signal in a preset white list reaches a preset threshold if the target Wi-Fi signal is not encrypted; and

if yes, then determining that the target Wi-Fi signal contains an unsafe factor.

14. The method according to claim 10 , wherein determining whether the target Wi-Fi signal contains an unsafe factor by detecting attribute information of the target Wi-Fi signal comprises:

detecting whether the target Wi-Fi signal is encrypted;

determining whether the similarity between the name of the target Wi-Fi signal and the name of a known safe Wi-Fi signal in a preset white list reaches a preset threshold if the target Wi-Fi signal is not encrypted;

if yes, then determining whether the known safe Wi-Fi signal is also searched out by the current terminal; and

if yes, then determining that the target Wi-Fi signal contains an unsafe factor.

15. The method according to claim 10 , wherein determining whether the target Wi-Fi signal contains an unsafe factor by detecting attribute information of the target Wi-Fi signal comprises:

obtaining, from a server, the number of times detected by the server that users report that the target Wi-Fi signal is not safe; and

determining that the target Wi-Fi signal contains an unsafe factor if the number of times reaches a preset threshold.

16. The method according to claim 10 , further comprising:

determining a level of risk of the Wi-Fi signal according to the quantity of detected unsafe factors;

wherein displaying prompt information about the target Wi-Fi signal comprises:

displaying the prompt information with a different display attribute based on a varying high or low level of risk.

17. The method according to claim 10 , further comprising:

capturing, by the terminal, first data information transmitted by a user via the Wi-Fi signal with the unsafe factor;

encrypting and then transmitting, by the terminal, the captured first data information to a preset proxy server; and

decrypting and then transmitting, by the proxy server, the first data information, transmitted by the user, to a destination address.

18. The method according to claim 17 , further comprising:

receiving, by the preset proxy server, second data information fed back by the destination address for the first data information, and encrypting and then transmitting the fed-back second data information to the terminal; and

receiving and then decrypting, by the terminal, the second data information returned by the proxy server, and processing the second data information, obtained by decrypting, as a feedback result of the first data information.