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He tested the NVRAM destruction attack on printers from Brother , Konica Minolta , Lexmark , Dell and HP , and verified that they are vulnerable .
 discover vulnerability: are vulnerable
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: are vulnerable