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In one situation , a user paid a ransom to their attackers , but their attackers could not decipher the files encrypted by their own Trojan.Encoder ( Cryptolocker ) , and advised the user to seek help … from Doctor Web 's technical support service , " the webpage reads .
 ransom: paid a ransom
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: paid a ransom