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Cloudflare ’s inspection of tens of thousands of pages that were leaked from its reverse - proxy servers and cached by search engines revealed a " large number " of instances of internal Cloudflare cookies and headers .
 data breach: were 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: were leaked