2014
The hackers claim they hold an alleged cache of stolen accounts , and their goal is to shake down the big Apple for $ 75,000 in Bitcoin or Ethereum cryptocurrency .
 ( ransom: shake down,  The hackers: attacker, hold an alleged cache of stolen accounts: attack pattern, the big Apple: victim, $ 75,000: price, in Bitcoin or Ethereum cryptocurrency: payment method) 
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: shake down,  The hackers: attacker, hold an alleged cache of stolen accounts: attack pattern, the big Apple: victim, $ 75,000: price, in Bitcoin or Ethereum cryptocurrency: payment method) 