1588
The Amnesia botnet looks for an unpatched remote code execution vulnerability affecting DVR ( digital video recorder ) appliances manufactured by China - based TVT Digital and identified in nearly identical products from more than 70 global vendors .
 discover vulnerability: affecting
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: affecting