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Similar to how some sites are the middlemen for sellers , Web - based " businesses " started to appear in early 2016 to act as proxies for data extortionists to post sensitive stolen data to add urgency to payment demands , sell the stolen data to a third - party , or utilize it in other ways .
 ( data breach: post,  sensitive stolen data: compromised data, sell the stolen data: purpose, data extortionists: attacker, early 2016: time) 
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:
 ( data breach: post,  sensitive stolen data: compromised data, sell the stolen data: purpose, data extortionists: attacker, early 2016: time) 