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Social media phishing attacks jumped by a massive 500 % in Q4 , driven by a huge increase in fraudulent accounts including many posing as customer support for big name brands , according to Proofpoint .
 ( phishing: posing as,  big name brands: trusted entity, customer support: 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:
 ( phishing: posing as,  big name brands: trusted entity, customer support: attacker) 