2524
According to the letter , the breach occurred on Nov. 21 , 2016 after a Boeing employee encountered a formatting issue and emailed a spreadsheet to his spouse who did n’t work at the company .
 data breach: the breach
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:
 data breach: the breach