Describe the ransomware attack against the City of Atlanta in the United States. Describe the attack vector. Describe what City departments and functions were impacted? Did the City know they had vulnerabilities? Did they attempt to address them? Describe what the City of Atlanta have done to prevent the attack or minimize its consequences. Describe what the City of Atlanta has done since the attack to improve its security posture? Describe the ransom demanded, what was paid and what the overall costs were to the City.