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However , the fraudsters behind this latest scam are looking to take advantage of the fact WhatsApp -- which has over a billion users -- did once rely on a subscription service to dupe victims into handing over their banking information .
 ( phishing: dupe,  victims: victim, handing over their banking information: purpose, fraudsters: 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: dupe,  victims: victim, handing over their banking information: purpose, fraudsters: attacker) 