464
Aside from dissuading victims from handing over money that may help fund further such attacks , they caution that it is not guaranteed the attackers will return control of people ’s computers even if they pay the assailants in bitcoin , a digital currency favored in such ransomware attacks that can be difficult to trace .
 ( ransom: handing over money,  victims: 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: handing over money,  victims: victim) 