big data and privacy Big data is a new concept these days, which means a load of information collected via Cloud technology would be used to predict or influence people's behavior or other things. Let's look at the bright side first. It could provide more accurate services by analyzing individuals' motivation of consumption; the weather broadcast can be more reliable because of tons of data; In the industry of biology, we may crack the secret of DNA more quickly. The president candidates may use it to predict the tendency of election. However, big data can be misused inevitably by some companies even by the government. Try to imagine, someone may do some bad things by stealing your identity. We can always hear from the news that someone's credit card information has been leaked because they have put me personal information on the Internet. Even worse, some very personal information like photos may have the risk being leaked, we all know the incident that happened days ago on the Internet. The government can control people by having their personal data. A lot of evidence suggests that big data is a double-blade sword, it can seriously jeopardize our life if it is misused. But who should be blamed or be responsible for it ? Who can protect us or set the boundaries? I cannot answer those questions, can you ?