2574
A demand for an aggressive amount of money , generally in Bitcoin , is then demanded by the perpetrator in exchange for the key that decrypts said data that has been hijacked .
 ransom: A demand
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:
 ransom: A demand