Protection against zero-day attacks, polymorphic malware and computer security in general is moving more and more to "cloud". We build massively scalable low-latency backend systems with REST APIs that must respond to tens of thousands of requests every second. Such a demanding task requires application of the most modern technologies - distributed NoSQL data stores, asynchronous HTTP handling and the latest algorithms. We will show you how we went about creating one such system called FileRep (service that provides reputation of potentially harmful files) using Netty, Cassandra and Scala.
These slides were presented at WebExpo 2014 in Prague.