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The Australian Securities and Investments Commission has issued a warning after scammers posing as the regulator emailed Australian businesses on Wednesday morning with malware - laden notices .
 ( phishing: posing as,  Australian businesses: trusted entity, scammers: attacker, Wednesday morning: time, malware - laden notices: tool) 
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,  Australian businesses: trusted entity, scammers: attacker, Wednesday morning: time, malware - laden notices: tool) 