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Not ones to be unprofessional , the Charger operators attempt to reassure their victims by offering a " 100 % guarantee " that once the 0.2 Bitcoin ransom ( currently around $ 183 ) is paid , all the collected information will be deleted and the device unlocked .
 ( ransom: is paid,  0.2 Bitcoin: price, the Charger operators: attacker, their victims: victim, $ 183: price) 
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: is paid,  0.2 Bitcoin: price, the Charger operators: attacker, their victims: victim, $ 183: price) 