Security professionals need to be able to access and analyze this data in real-time in order to mitigate risk, detect incidents, and respond to breaches. Security and IT operations tools spit out an avalanche of data like logs, events, packets, flow data, asset data, configuration data, and assortment of other things on a daily basis. Big data security analytics solutions are built using stream processing to accommodate the high I/O rate needed to process massive amounts of security datas.”]
Source: https://www.csoonline.com/article/2225447/big-data-security-analytics-faq.html