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Emotet is known to constantly evolve , and in the past few weeks has masqueraded as the IRS , pretending to be “ IRS Online ” .
 phishing: has masqueraded as
Please tell me event type and its trigger word from given type options. Output format is "type: trigger".  Option: phishing, data breach, ransom, discover vulnerability, patch vulnerability 
Text: {0} 
Answer:
 phishing: has masqueraded as