This article discusses ten major cyber attacks on government agencies. It is a compilation of attacks, and states information about the type of attack, location of the attack, cost of the attack, and number of people affected by the attack. The attacks discussed are mostly ransomware, phishing, or credential stuffing attacks and information about what happened in each case is given. Some notable attacks listed include the RobbinHood ransomware attack against the city of Baltimore, the SamSam ransomware attack against the city of Atlanta, and the WannaCry ransomware attack against the United Kingdom’s National Health Service. The article concludes by stating how cyber attacks on government agencies can be very harmful since they affect a large number of people, and the attacked entities typically have limited budgets to respond to an attack.