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Since then , cyber criminals have been attempting to monetize this data by sending emails to users whose info they found in the dump , threatening to reveal all of it to the target ’s nearest and dearest , and asking for money in exchange for silence .
 ( ransom: asking for money,  threatening to reveal all of it to the target ’s nearest and dearest: attack pattern, cyber criminals: attacker, users: 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:
 ( ransom: asking for money,  threatening to reveal all of it to the target ’s nearest and dearest: attack pattern, cyber criminals: attacker, users: victim) 