Abstract: Identifying suspected phishing websites includes: obtaining an address of a website to be identified; determining, according to the address of the website to be identified, that the website to be identified is neither a legal website to be protected nor a phishing website; applying a suspected phishing website rule by matching a regular expression with the address of the website to be identified; and in the event that the matching is successful, determining that the website to be identified is a suspected phishing website.

Abstract: The present disclosure discloses a method for managing user information in an instant messaging system in order to address the problems of increasing system workload, increasing network overhead and deteriorated system performance in existing technologies due to frequent access of user information management server or servers when user information is searched. According to a disclosed method, an access server obtains and stores information of contacts of a logged-in user; the access server notifies user information of the logged-in user to other access servers; the access servers that receive the notification store the user information of the logged-in user upon determining that contact(s) is/are found locally therein; and when the access server needs to obtain the information of the contacts of the user, the access server performs a search either locally or in other access servers. Furthermore, a communication system is also provided.

Abstract: Executing a plugin includes obtaining a stability level of the plugin to be executed, determining a plugin execution mode based at least in part on the stability level, and executing the plugin according to the plugin execution mode determined. The plugin execution mode is selected from a plurality of available plugin execution modes.

Abstract: The present disclosure discloses a method for managing user information in an instant messaging system in order to address the problems of increasing system workload, increasing network overhead and deteriorated system performance in existing technologies due to frequent access of user information management server or servers when user information is searched. According to a disclosed method, an access server obtains and stores information of contacts of a logged-in user; the access server notifies user information of the logged-in user to other access servers; the access servers that receive the notification store the user information of the logged-in user upon determining that contact(s) is/are found locally therein; and when the access server needs to obtain the information of the contacts of the user, the access server performs a search either locally or in other access servers. Furthermore, a communication system is also provided.

Abstract: Executing a plugin includes obtaining a stability level of the plugin to be executed, determining a plugin execution mode based at least in part on the stability level, and executing the plugin according to the plugin execution mode determined. The plugin execution mode is selected from a plurality of available plugin execution modes.

Abstract: Identifying suspected phishing websites includes: obtaining an address of a website to be identified; determining, according to the address of the website to be identified, that the website to be identified is neither a legal website to be protected nor a phishing website; applying a suspected phishing website rule by matching a regular expression with the address of the website to be identified; and in the event that the matching is successful, determining that the website to be identified is a suspected phishing website.