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The Guardian has since published several other articles about WhatsApp including one by Tobias Boelter attempting to justify the claims of there being a “ vulnerability ” in WhatsApp .
 discover vulnerability: justify the 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: justify the claims