In 1990, when the internet was born, a new era began. Since then, it has grown so powerfully that nowadays most people could not imagine their life without smart phones, computers. These innovations naturally make our life easier, but we do not often think about the enormous amount of electronic records (data) that are created about us. We cannot avoid leaving traces behind us online. However, anyone can easily access these data including where we are, what we are doing, how often we are doing these things, what we spend on and where we do our shopping. These data can be used easily and in many ways against us but on the other hand, it is useful in protecting us too. Companies and governments often refer to the observation of our daily life as it is done for security purposes only, but how far can they break the limits with our private sphere? They are working with data that they get from mobile phones, internet or the intelligent surveillance systems like CCTV cameras, drones, biometric data and so on to get information from society and use this information to create a safe environment and to assess the needs of consumers.

Instead of Orwell’s’ Big Brother, in which he is talking about one big surveillance state, there are many small information monopolies. These “small brothers” are always there to watch everyone’s steps. Airlines have a huge database for booked and purchased tickets from which can see where or how often we travel, which countries are preferred by us and this way can be easily deduced for example where our relatives lives. In the Netherlands, the public transport company Arriva uses nominated travel cards (just for Dutch people); with this card, passengers can travel cheaper, but on the other hand the company knows where, when and how often they travel. Furthermore, if someone pays with his or her credit card they give information immediately about what they bought and where. These are all information that we share about ourselves that we do not know about or if we know it, it does not bother us. Can safety of the people be guaranteed with total privacy?

In this paper I argue that surveillance is a necessary evil, we are not be able to choose alone security or alone privacy, because they are closely related. If we lose or there is no proper security and we have trouble, then our private spheres will no longer matter. When we can feel safe and we have not got the sense of danger is more important than some private data. Do we want to travel by an airplane where everyone’s luggage was screened or by an airplane where no one’s was? For the sake of security, we must abandon certain private data (for example when we let them look into the package and see our personal items) but it has limits too where regulations are needed to find the b