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Spear phishing emails booby - trapped with custom - made malware were sent to key staff in IT services firms in the first stage of an attack .
 phishing: booby - trapped
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: booby - trapped