1830
As this is a very large ransom payment and due to the fact that this ransomware is not in wide circulation , it leads me to believe that this ransomware developer may be conducting targeted attacks .
 ( ransom: a very large ransom payment,  ransomware: tool, ransomware developer: 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: a very large ransom payment,  ransomware: tool, ransomware developer: attacker) 