465
Officials also note that the attackers , who have yet to been named , have provided only three bitcoin addresses — similar to a traditional bank routing number — for all global victims to deposit the ransom , so it may prove difficult to know who has paid the digital fees .
 ( ransom: has paid the digital fees, None) 
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: has paid the digital fees, None) 