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Ransomware has long been a headache for PC and smartphone users , but in the future , it could be robots that stop working unless a ransom is paid .
 ransom: a ransom is paid
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 ransom is paid