3490
The campaign – now defunct – started with an email informing users they needed to update their account details .
 ( phishing: The campaign,  started with an email informing users: attack pattern, they: victim, update their account details: purpose) 
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: The campaign,  started with an email informing users: attack pattern, they: victim, update their account details: purpose) 