THE SIEM — THE DATA LAYER
OpenSIEM.
The most affordable security monitoring on the planet.
Think of OpenSIEM as a security camera system for your entire digital business. It records everything that happens — who logged in, what they accessed, what moved across your network — and stores it safely and cheaply.
When something goes wrong, you have the full picture. When an auditor asks for evidence, it is already there. And unlike every other security monitoring tool on the market, it does not cost six figures before it is even useful.
Free to self-host. Community edition included. Pay only when you scale.
Smart compression means 30 gigabytes of logs costs the same as one. No nasty per-GB bills.
Pay for the number of computers and servers you protect — a number you already know.
Switch it on. Get answers. No weeks of professional services required.
How it works
Simple enough to explain in three steps.
Connect your devices
OpenSIEM installs a small, lightweight collector on your computers and servers. It takes minutes per machine and uses almost no resources.
Everything gets recorded
Every login, every file access, every network connection is captured and stored safely — compressed so it costs a fraction of what traditional tools charge.
Threats surface automatically
Built-in detection rules flag suspicious activity the moment it happens. No configuration required to get started — alerts are live from day one.
Why this matters to your business
The foundation everything else is built on.
You cannot investigate an attack if you have no record of what happened. OpenSIEM is that record.
Regulators and cyber insurers increasingly ask for evidence that you are monitoring your environment. OpenSIEM provides it.
When urgentic blue, green, and red are added later, they all feed from this single data source — no duplicate costs.
What is included
Everything you need. Nothing you do not.
Log collection
Captures events from devices, servers, cloud services, and applications.
Smart detection
Hundreds of pre-built rules covering the most common attack patterns — active from day one.
Affordable storage
Columnar compression keeps one year of logs for a fraction of competitor pricing.
Instant alerting
Suspicious events surface immediately — not hours later when the damage is done.
Ready for the next layer?
urgentic blue
Add the AI security team that acts on everything OpenSIEM captures.