In the United States, hackers' blackmail targets are not only ordinary people who are defenseless, but also the U.S. government. Recently, Detroit Mayor Michael Duggan told reporters his bitter experience.
The hackers tried to hijack the Detroit government's database as a ransom for 2000 bitcoins (US $803500), because the city government had abandoned the database, so it did not meet the hackers' unreasonable demands.
But through this incident, the mayor of Detroit said that we should take a warning that Detroit needs to catch up and make efforts in technological infrastructure. Because if there is another time, it may not be so lucky.