SOCIAL MEDIA BASED RECOMMENDATION INFORMATION PROVIDING APPARATUS AND METHOD

1 . A social network service (SNS)-based recommendation information providing method in a first user terminal including one or more processors, the SNS-based recommendation information providing method comprising:

executing, by the one or more processors, an instant messaging application to establish a chat room between user terminals, which include the first user terminal and a second user terminal;

receiving, by the one or more processors, a message from the second user terminal;

determining, by the one or more processors, whether at least one piece of financial transaction information among an amount of money, an account number, and an account holder is included in the message;

determining, by the one or more processors, whether the message is a suspected phishing message, based on a history of chatting between the first user terminal and the second user terminal;

generating, by the one or more processors, a notification message notifying that it is determined that the message is the suspected phishing message; and

displaying, by the one or more processors, recommendation information including the notification message via an output interface.

2 . The SNS-based recommendation information providing method of claim 1 , wherein the determining whether the message is the suspected phishing message comprises determining whether the message is the suspected phishing message, based on whether the history of chatting between the first user terminal and the second user terminal includes financial transaction information.

3 . The SNS-based recommendation information providing method of claim 1 , wherein the recommendation information comprises at least one response message for identifying a chat partner.

4 . The SNS-based recommendation information providing method of claim 3 , wherein first response message of the at least one response message is transmitted to the second user terminal in response to a send input with respect to the first response message.

5 . The SNS-based recommendation information providing method of claim 3 , wherein second response message of the at least one response message is corrected in response to a correction input with respect to the recommendation information, and the second response message is transmitted to the second user terminal in response to a send input with respect to the second response message.

6 . A social network service (SNS)-based recommendation information providing method in a message server including one or more processors, the SNS-based recommendation information providing method comprising:

establishing, by the one or more processors, a chat room between user terminals, which include a first user terminal and a second user terminal;

receiving, by the one or more processors, a message from the second user terminal;

determining whether at least one piece of financial transaction information among an amount of money, an account number, and an account holder is included in the received message, by a server that has transmitted the message to the first user terminal;

determining, by the one or more processors, whether the message is a suspected phishing message, based on a history of chatting between the first user terminal and the second user terminal;

generating, by the one or more processors, a notification message notifying that it is determined that the message is the suspected phishing message;

transmitting, by the one or more processors, the notification message to the first user terminal; and

displaying, by the one or more processors, recommendation information including the notification message via an output interface.

7 . The SNS-based recommendation information providing method of claim 6 , wherein the determining whether the message is the suspected phishing message comprises determining, by the one or more processors, whether the message is the suspected phishing message, based on whether financial transaction information between the first user terminal and the second user terminal is present.

8 . The SNS-based recommendation information providing method of claim 6 , wherein the recommendation information comprises at least one response message for identifying a chat partner.

9 . The SNS-based recommendation information providing method of claim 8 , wherein, additionally, first response message of the at least one response message is transmitted to the second user terminal via a communication session of the chat room by the one or more processors, in response to a send input with respect to the first response message from the first user terminal.

10 . The SNS-based recommendation information providing method of claim 8 , wherein, additionally, second response message of the at least one response message is corrected by the one or more processors, in response to a correction input with respect to the recommendation information from the first user terminal, and the second response message is transmitted to the second user terminal in response to a send input with respect to the second response message from the first user terminal.

11 . The SNS-based recommendation information providing method of claim 6 , wherein the determining whether the message is the suspected phishing message comprises determining, by the one or more processors, whether the message is the suspected phishing message, by further taking into account whether a number of receivers of the message is equal to or greater than a preset threshold receiver number.