We have been hearing a lot about cloud computing these days and this technology has gained a lot of momentum now. But cloud security still remains a concern for everyone. Which is a better option: private or public cloud? Let’s take a look. Public Cloud : A public cloud is nothing but outsourcing your data centre. An external company offers up its data centre for rent and one can choose the number of servers or the amount of storage that needs to be run there, as well as applications. It can then be accessed remotely from a PC.