With a state as densely populated as Hong Kong, it might come as a surprise that the crime rate is one of the lowest in the world. The biggest safety threats are small scams and the occasional typhoon. Discrimination, albeit still a problem, is decreasing as well due to government measures.
As in every city or state which is as densely populated as Hong Kong, scams, petty theft, and other small crimes are a problem. However, the overall crime rate remains rather low. Omnipresent police forces work hard to ensure a high level of security so that the only major threats are occasional typhoons. Discrimination is still somewhat of a problem in Hong Kong. However, government measures and anti-discrimination laws are slowly leading to a more inclusive society.