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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 .
 Australian businesses: trusted entity; scammers: attacker; Wednesday morning: time; malware - laden notices: tool
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: phishing 
  Option: victim, attacker, attack pattern, purpose, damage amount, tool, time, place, trusted entity 
Text: {0} 
Answer:
 Australian businesses: trusted entity; scammers: attacker; Wednesday morning: time; malware - laden notices: tool