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Criminals remotely access a victim 's computer and lock all the files using encryption software , offering to unlock the data in exchange for a payment .
 ransom: exchange for a payment
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: exchange for a payment