3373
Locky , which uses massive spam campaigns as a major distribution vector , only surfaced in 2016 but has rapidly become one of the most popular tools for cybercriminals , part of a growing trend for ransomware cyberattacks that encrypt data on the target machine and demand payment in return for decrypting it .
 ( ransom: ransomware cyberattacks,  encrypt data: attack pattern, machine: victim) 
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: ransomware cyberattacks,  encrypt data: attack pattern, machine: victim) 