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About 33 million records belonging to Dun & Bradstreet have been leaked , placing a large portion of the US corporate population at risk .
 data breach: have been leaked
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 leaked