528
The recent WannaCry ransomware attack , which spread to more than 100 countries , is only the beginning in a series of similar attacks , according to Cătălin Coșoi , head of the Bitdefender ’s investigation team coordinating the relations of the company with institutions such as NATO , Europol , Interpol , or national response centers to cyber-security incidents , Agerpres reported .
 ( ransom: WannaCry ransomware attack, 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: WannaCry ransomware attack, None) 