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The security firm SonicWall estimated 638 million ransomware attacks that cost $ 209 million last year , more than 167 times the 3.8 million attacks recorded in 2015 .
 ransom: attacks
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: attacks