1835
Often the fraudster will claim there has been suspicious activity on an account , ask the individual to verify or update their account details , or claim they are due a refund .
 ( phishing: claim,  suspicious activity on an account: attack pattern, fraudster: attacker, individual: attacker, 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: claim,  suspicious activity on an account: attack pattern, fraudster: attacker, individual: attacker, update their account details: purpose) 