3407
Most have n’t been aware they were attacked when they clicked on links in email that seemed to come from people they knew .
 ( phishing: were attacked,  clicked on links in email: attack pattern, they: victim) 
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: were attacked,  clicked on links in email: attack pattern, they: victim) 