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A security lapse at content distribution network provider Cloudflare that resulted in customer data being leaked publicly for several months was bad - but had the potential to be much worse .
 data breach: being 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: being leaked