Looking for an EDR alternative? Why the real answer is a layer, not a replacement

What people really mean by 'EDR alternative'

Almost nobody searching this phrase wants to rip out endpoint detection and leave their laptops and servers unprotected. What they actually want falls into a few buckets: coverage for the systems EDR cannot run on, defense that holds up when attackers disable or evade the agent, a way to actually keep operating and recover during an attack rather than just getting an alert, or sometimes simply a lighter, less noisy, or less expensive option. Those are legitimate needs, but only one of them is really about replacing EDR, and it is usually the least important one.

So the useful question is not 'what replaces EDR,' it is 'what is the gap that made me go looking.' Name the gap honestly and the right answer usually stops being a swap and becomes an addition.

Gap 1: the devices EDR can't run on

The most common reason, especially in healthcare, is that a huge part of the environment cannot host an agent at all. Infusion pumps, imaging and PACS controllers, patient monitors, building systems, cameras, and legacy machines run closed or embedded operating systems, and in regulated settings you often are not even permitted to modify them. No endpoint tool, however good, covers them, because there is nowhere to install it.

An 'alternative' that is just a different agent does not solve this. What solves it is protection at the network boundary, where a device's behavior can be watched and a compromised one can be quarantined without touching the device itself. That is an addition to EDR, not a replacement for it.

Gap 2: attackers who disable or evade the agent

The second reason is that attackers have gotten very good at defeating endpoint tools. They arrive with no malware to detect, or they load a vulnerable driver to kill the agent before they strike. A March 2026 analysis counted 54 distinct EDR killers abusing signed vulnerable drivers, and CrowdStrike reported that 82% of 2025 detections were malware-free. Swapping one endpoint agent for another leaves you exposed to the same playbook, because the playbook targets the endpoint layer itself, not a particular vendor.

What helps here is detection that does not live on the endpoint, network signals and deception that still fire when the agent has been blinded, and continuous access verification that catches a valid-looking login behaving abnormally. Again, a layer alongside EDR, not instead of it.

Gap 3: detection is not continuity

The third and most important reason is that EDR was built to detect and alert, not to keep you running. When ransomware hits a hospital, the question is not only 'did we get an alert,' it is 'can we still treat patients, and how fast can we restore what was encrypted.' Endpoint detection, by design, does not contain an attack across a whole network in seconds, and it does not orchestrate a clean, ordered recovery of your systems. That is a different job.

This is the gap most worth closing, and it is why the framing of 'alternative' is misleading. You are not looking for a better detector. You are looking for resilience: fast containment and self-healing recovery that turn an incident into something you survive intact.

What to evaluate instead of a straight swap

If you are shopping, these are the questions that actually separate options, and they are mostly not questions EDR vendors compete on.

• Does it protect the devices that cannot run an agent, at the network level?
• Does it still detect when the endpoint agent is disabled, evaded, or absent?
• Does it contain a threat across the network in seconds, with safety gating for critical systems?
• Does it recover systems from immutable, air-gapped backups in the right priority order, validated clean?
• Does it produce a tamper-proof record for your breach determination and auditors?
• Does it complement, not duplicate, the EDR you already run?

Where Immune fits

We are not an EDR replacement, and we will tell you so directly. We are the resilience layer that sits on top of the endpoint tool you already have: network and deception-based detection that covers the agentless devices and the evasion techniques EDR struggles with, containment in seconds, and self-healing recovery from immutable backups. Keep your endpoint tool for what it is good at, and add the layer that handles what it was never designed to do.

If the gap that sent you searching was any of the three above, the fix is not a different agent. It is resilience. Our pillar article on whether EDR is enough to stop ransomware lays out the full case, and our piece on evasive ransomware explains exactly how attackers get past the endpoint today.