665
Even as the value of bitcoin steadily rose during the summer , some attackers were still using the standard amounts of cryptocurrency as their ransom demand .
 ransom: ransom 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: ransom demand