1909
It found more than a quarter of these intrusions originated from so - called spear phishing emails that hackers use to trick people into downloading infected attachments or clicking on virus - laden links .
 ( phishing: trick,  spear phishing emails: tool, hackers: attacker, people: victim, clicking on virus - laden links: attack pattern, downloading infected attachments: attack pattern) 
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: trick,  spear phishing emails: tool, hackers: attacker, people: victim, clicking on virus - laden links: attack pattern, downloading infected attachments: attack pattern) 