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F - Secure , a Finnish cybersecurity firm , has confirmed that some of the 200 individuals that it had identified , who had paid the ransom , had successfully had their files decrypted .
 ( ransom: had paid the ransom,  individuals: 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: had paid the ransom,  individuals: victim) 