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McAfee has been tracking ransomware attacks for years as they progressed from extorting $ 100 or $ 200 from individuals who clicked the wrong link to “ soft targets ” such as hospitals , universities and police stations to some of the major global corporations the antivirus firm counts among its customers .
 ( ransom: extorting,  $ 100: price, $ 200: price, individuals: victim, clicked the wrong link: attack pattern, they: attacker) 
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: extorting,  $ 100: price, $ 200: price, individuals: victim, clicked the wrong link: attack pattern, they: attacker) 