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As of Saturday , Atlanta officials and federal partners were still “ working around the clock ” to resolve the ransomware attack on city computers that occurred around 5 a.m. on Thursday , March 22 , and encrypted some financial and person data .
 ransom: the ransomware 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 ransomware attack