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On average , businesses reported that 47 devices had been infected by their most recent ransomware attack but one third of businesses with over 1000 employees reported that more than 101 devices were affected .
 ( ransom: their most recent ransomware attack,  devices had been infected: attack pattern, businesses: 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: their most recent ransomware attack,  devices had been infected: attack pattern, businesses: victim) 