在大数据时代下,信息呈爆炸式增长,丰富的信息资源为我国各领域的发展提供了重要帮助,但与此同时数据极具增长下,其带来的网络安全隐患也逐渐增多。尤其是近些年网络犯罪的频繁发生,严重威胁了人们的隐私与财产安全。在此背景之下,本文将针对大数据时代下计算机网络安全的现实情况,着重围绕大数据时代下如何做好计算机网络安全防范提出几点有效措施。 Under the era of big data, the information has exploded and abundant information resources have provided important help for the development of all fields in our country. However, at the same time, with the huge growth of data, the network security risks brought by it have also gradually increased. In particular, the frequent occurrence of cybercrime in recent years has seriously threatened people’s privacy and property security. Against this background, this article will focus on the actual situation of computer network security in the era of big data, focusing on how to do a good job of computer network security under the era of big data several effective measures.