2033
A severe vulnerability has been disclosed in libpurple , the library used in the development of a number of popular instant messaging clients , including Pidgin and Adium for the macOS platform .
 discover vulnerability: has been disclosed
Please tell me event type and its trigger word from given type options. Output format is "type: trigger".  Option: phishing, data breach, ransom, discover vulnerability, patch vulnerability 
Text: {0} 
Answer:
 discover vulnerability: has been disclosed