Why is big data controversial?

Why is big data so controversial? On one hand, it promises to revolutionize industries by providing unprecedented insights and enabling data-driven decision making. Yet, concerns over privacy, data security, and the potential for misuse have led many to question the ethical implications of harnessing such vast amounts of information. So, how do we balance the benefits of big data with the need to protect individual rights and maintain ethical standards? What steps can be taken to ensure that big data is used responsibly and transparently?