Cuba is one of the safest countries in the world and Habana is among the relatively safer cities of Central and South America. The country is ideal for traveling with small children - Cubans care a lot about them - and there is almost nothing to fear at night, even if the roads look dark or almost deserted. Although many of the common crimes in all countries in Cuba are almost unknown, there are some "local" nuisances that you should know, to avoid unpleasant setbacks.

Casa Particular
The Casas Particular pay very high taxes to get the license, fixed monthly taxes, independent of the number of tourists who will host the house. In addition to obtaining the license, the house should provide minimum standards of cleanliness, size and security - needless to say that if they register a theft against tourists in a house with the license, it would be immediately withdrawn from the inflexible ministry officials.
In Cuba there are many illegal homes, renting one or more rooms without regular license issued by the Ministry of Tourism. Staying in one of these homes - apparently cheaper - will not satisfy the minimum requirements of cleanliness, size and - above all - security – requested by the Cuban State to holders of regular license. So extreme attention and caution must be paid in accepting a Casa from unknown people or perhaps by a taxi driver, since, staying in a non-authorized house, may lead to experience one of the risks cited.
Our houses are regular holders of Licencia de Arrendedor Inscripto, provided by the Cuban Ministry of Tourism, you can rely on our staff with the utmost calm. Once in Cuba is always preferable to request a reservation for your next stop to our Location Manager in Habana or at one of our corresponders in the city where you’re staying. CaseCuba will give you the address, a reservation code - which is known only to the house you reserved - and the pictures of the exterior of the house and the owner, so be sure 100% to get in one of our homes .

Taxi
Like for casas, in Cuba there are many taxi without a license. The fares are cheaper, but only apparently as - once in the car - the driver will do everything possible to bring the tourist in a home or a restaurant that will pay a bribe to the driver. Often then, the houses have no license (see above). In recent years, there were real scams against tourists, unaware, transported by the taxi driver at another house that is not that of the address provided to the driver. In other cases, at Habana, some illegal taxi driver wait with a sign written at the airport and copied from the sign of another – legitimate – taxi driver waiting, hoping that tourists will fall in the trap.
CaseCuba will provide you with a booking code known only by the driver of the taxi booked for you, so be sure 100% to board the right  taxi.

Currency black market
As in Cuba 2 currencies are legal tender, the Peso Nacional (for Cuban to be spent only at run-state food markets) and the Peso Convertible (to be spent by tourists in hotels, taxis, homes, etc.). Often on the street some people might offer tourists to change the foreign currency (EUR or US$ or other) - with a very favorable exchange rate. This is a fraud, because the tourist is circumvented with the classic game of the roll of money in which the first external banknote is a Peso Convertible that contains only Pesos Nacional.
 
Cigars and Rum
Never buy cigars and rum from a street vendor. Besides the danger of having them confiscated at customs, leaving the country, most likely it will be made out of bad alcohol or tobacco, if not harmful to health. Better then spend a few more pesos and ensure a genuine product.