This document summarizes Yash Ranadive's talk on Hadoop at Lookout. It discusses how Lookout uses analytics to make smartphones and tablets secure, their data analytics team structure, and their event ingestion pipelines using Storm and Hadoop. The key parts of their architecture include ingesting event data through Storm topologies into Hadoop, running queries on Hive, and using tools like Tableau, Hue, and custom apps for reporting and ad hoc querying.