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The hackers apparently demanded a large payment in Bitcoin , and threatened to release five minutes of the stolen film followed by subsequent 20 - minute instalments if their demands were n’t met .
 ( ransom: payment,  in Bitcoin: payment method, threatened to release: attack pattern) 
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: payment,  in Bitcoin: payment method, threatened to release: attack pattern) 