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Since the night of the hack , the company has filed a complaint with the FBI and is now offering the 30 Bitcoin ransom as a reward for any clues that lead to the attacker 's arrest .
 ( ransom: ransom,  30 Bitcoin: price, the company: victim, attacker: 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:
 ( ransom: ransom,  30 Bitcoin: price, the company: victim, attacker: attacker) 