3163
By comparison , the DataLust ransomware demanded merely $ 15 and could be an indicator of a wider effort by mobile malware developers to catch up with their PC ransomware cousins .
 ( ransom: demanded,  $ 15: price, the DataLust ransomware: tool) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: phishing, data breach, ransom, discover vulnerability, patch vulnerability, Arguments type: vulnerable system, capabilities, vulnerability, number of victim, issues addressed, compromised data, damage amount, common vulnerabilities and exposures, victim, patch number, number of data, tool, discoverer, time, purpose, place, payment method, releaser, vulnerable system version, attacker, supported platform, patch, price, vulnerable system owner, trusted entity, attack pattern. 
Text: {0} 
Answer:
 ( ransom: demanded,  $ 15: price, the DataLust ransomware: tool) 