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In the case of Fancy Bear , the hacking group has leveraged the protocol to build fake applications that can fool victims into handing over account access , Trend Micro said .
 ( phishing: build,  the hacking group: attacker, Fancy Bear: attacker, fake applications: trusted entity) 
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:
 ( phishing: build,  the hacking group: attacker, Fancy Bear: attacker, fake applications: trusted entity) 