1398
Then , in early 2016 , the Callisto Group began sending highly targeted spear phishing emails with malicious attachments that contained , as their final payload , the “ Scout ” malware tool from the HackingTeam RCS Galileo platform .
 phishing: sending
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:
 phishing: sending