3253
Facebook is dismissing claims by a researcher who says multimedia content such as audio - based messages sent via its Facebook Messenger service can be intercepted by a third - party under certain conditions .
 discover vulnerability: claims
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:
 discover vulnerability: claims