tirreno is described as 'Open-source SIEM to monitor and protect your web application from cyber fraud, account takeovers, fake accounts, and abuse. Get started for free' and is an app in the network & admin category. There are more than 10 alternatives to tirreno for a variety of platforms, including Web-based, SaaS, Windows, Linux and Self-Hosted apps. The best tirreno alternative is Imperva Bot Management. It's not free, so if you're looking for a free alternative, you could try Splunk or IPASIS. Other great apps like tirreno are DataDome, Netacea, FireEye Threat Analytics Platform and Exabeam.