3420
The men used simple spear - phishing emails sent to the high - ranking officials they wanted to infect .
 ( phishing: sent,  the high - ranking officials: victim, they: attacker, used simple spear - phishing emails: attack pattern, wanted to infect: purpose, The men: attacker) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: phishing, data breach, ransom, discover vulnerability, patch vulnerability, Arguments type: vulnerable system, capabilities, vulnerability, number of victim, issues addressed, compromised data, damage amount, common vulnerabilities and exposures, victim, patch number, number of data, tool, discoverer, time, purpose, place, payment method, releaser, vulnerable system version, attacker, supported platform, patch, price, vulnerable system owner, trusted entity, attack pattern. 
Text: {0} 
Answer:
 ( phishing: sent,  the high - ranking officials: victim, they: attacker, used simple spear - phishing emails: attack pattern, wanted to infect: purpose, The men: attacker) 