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Major corporations across the world have been hit by a wave of ransomware attacks that encrypt computers and then demand that users pay $ 300 to a bitcoin address to restore access .
 ransom: pay
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: pay