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While personal data , including identification numbers , phone numbers , and date of birth , were believed to have been stolen during the incident , the ministry said no classified information was compromised because it is stored on a separate system not connected to the Internet .
 data breach: have been stolen
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: have been stolen