Legal regulation of personal information protection under the big data environment

With the rapid development of Internet technology, big data technology is widely used in all walks of life, and the collection, use and analysis of personal information has become more and more convenient. However, the protection of personal information faces unprecedented challenges in the big data environment. Criminals use technological means to illegally obtain, sell and use personal information, which seriously infringes on citizens' right to privacy and information self-determination. This paper aims to discuss the legal regulation of personal information protection under the big data environment, analyze the shortcomings of the current legal system, and put forward suggestions to improve the legal system of personal information protection. By drawing on the advanced experience at home and abroad, this paper proposes that the scope and level of personal information should be refined, the protection of criminal law should be strengthened, and the civil relief channels should be improved, in order to promote the healthy development of personal information while protecting the rights and interests of big data technology.