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In the Atlanta attack , a ransomware known as SamSam was used to infect about 3,789 computers belonging to the city , prosecutors said .
 ransom: the Atlanta attack
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: the Atlanta attack