The 2026 Huntress report flagged Atera as a prime target for ransomware deployment, but the issue is systemic to all RMMs. Here’s a Senior DevOps Engineer’s real-world guide to hardening your RMM before it becomes your biggest liability.

Your RMM is a Ticking Time Bomb: A Senior Engineer’s Take on the Atera/Huntress Report

I remember a 2 AM PagerDuty alert that nearly gave me a heart attack. A script was trying to disable EDR on our primary domain controller, `dc-prod-01`. My first thought was a breach, an active attacker. I spent the next hour frantically tracing the source, only to find it was a junior tech, trying to run a “performance tuning” script from our RMM on the wrong machine group at the wrong time. He had near-admin access to the entire fleet because “it was easier to set up that way.” We got lucky. The EDR blocked it. But that incident crystalized a truth for me: the most powerful tool in your arsenal is often your single biggest point of failure, and that’s exactly what the new Huntress report is screaming about.

It’s Not Just Atera, It’s the Architecture of Trust

Listen, it’s easy to point fingers at Atera, but let’s be real. The problem isn’t the specific brand of tool; it’s the nature of Remote Monitoring and Management (RMM) itself. These platforms are built on a foundation of implicit trust. You install an agent with system-level privileges on every endpoint, and from a single web console, you can push scripts, install software, and change configurations across your entire infrastructure. Attackers know this. Compromise one RMM account, and you don’t just get one server; you get the keys to the entire kingdom. The reason we’re seeing specific tools get abused more is often a combination of market share, default security settings that are too permissive, and an MSP-focused model where one compromised account can lead to dozens of client breaches.

A Word of Warning: Convenience is the mortal enemy of security. Any tool that makes your life dramatically easier by centralizing power also makes an attacker’s life dramatically easier if they get in. Treat your RMM login with the same paranoia you’d reserve for your root AWS account.

Okay, How Do We Fix It? My Playbook.

Sitting around and blaming the vendor is a great way to end up on the news. We’re engineers; we build resilient systems. Here are three levels of response, from the immediate triage to the long-term architectural shift.

1. The Quick Fix: Stop the Bleeding NOW

This is the stuff you should drop everything and go do this afternoon. It’s not a permanent solution, but it raises the bar for an attacker from “trivial” to “annoying.”

• Mandatory MFA, Everywhere: I don’t care if it’s annoying. Every single user account with access to your RMM—from the full admin to the read-only intern—needs multi-factor authentication. No exceptions, no excuses.
• IP Allow-Listing: Lock down access to your RMM portal to your office IPs, your VPN subnet, and nothing else. If a tech needs to log in from a hotel, they can connect to the VPN first. This single step neuters credential-stuffing attacks from random IPs.
• Review “Default” Roles: Go look at the default permissions for a “Technician.” I’ll bet you it’s way too permissive. Clone the default role, name it something like “Limited Tech,” and start stripping out permissions. No one should be able to run arbitrary scripts or deploy software without explicit, elevated privileges.

2. The Permanent Fix: Architect for Least Privilege

This is where we move from panic-patching to thoughtful engineering. The goal is to make it impossible for one mistake or one compromised account to burn the whole house down.

• Implement Granular RBAC (Role-Based Access Control): Don’t just have “Admin” and “Tech.” Create specific roles. A `Helpdesk-L1` role might only be able to view asset info and run pre-approved diagnostic scripts. A `Server-Admin` role can manage patches on the `prod-web-*` fleet but can’t touch the `prod-db-*` servers. It takes time to set up, but it contains the blast radius.
• Script Approval Gates: The most dangerous feature of any RMM is arbitrary script execution. If your platform supports it, enable a policy where any new or edited script must be approved by a senior engineer before it can be run. This prevents both mistakes and malicious insiders. For example, a script designed to clear temp files shouldn’t be modifiable to also run `net user attacker /add`.
• Segregate Your Agents: Don’t use one RMM agent/policy for everything. Your domain controllers and critical database servers should be in a highly restricted group with a policy that only allows for monitoring and critical patching alerts. Your average user workstation can be in a less-restricted group. This is the digital equivalent of not using the same key for your front door and your bank vault.

# A bad, overly-permissive script you might find:
# "Clear-Temp-Files.ps1"
Get-ChildItem -Path $env:TEMP -Recurse | Remove-Item -Force -Recurse

# A malicious actor could easily modify this to:
# "Clear-Temp-Files_v2.ps1"
Get-ChildItem -Path $env:TEMP -Recurse | Remove-Item -Force -Recurse
net user shadow_admin Pa$$w0rd! /add
net localgroup administrators shadow_admin /add

3. The ‘Nuclear’ Option: Ditch the RMM for What It’s Bad At

This is my controversial take. Sometimes, the right tool for remote support is the wrong tool for infrastructure management. An RMM is a jack-of-all-trades, but it’s a master of none. For your core server infrastructure, especially in the cloud, consider that it might be a liability you don’t need.

• Use IaC for Configuration: For production servers like `prod-api-01` or `prod-db-cluster`, you shouldn’t be “managing” them with an RMM. Their state should be defined in code using tools like Ansible, Terraform, or Puppet. Patches and changes are applied through a CI/CD pipeline, not by a human clicking a “Run Script” button. The RMM agent becomes redundant and a risk.
• Leverage Native Cloud Tooling: If you’re in AWS, Systems Manager (SSM) can do a lot of what an RMM does—patching, remote shell, inventory—but it does it with IAM roles and policies, which are far more granular and auditable than most RMM permission models.
• Keep RMM for End-User Support Only: This is the hybrid approach. Keep your RMM, but only deploy the agent to user laptops and desktops. Your entire server fleet is managed via more robust, auditable DevOps tooling. You separate the chaotic world of end-user support from the pristine, locked-down world of production infrastructure.

Solution Comparison

At the end of the day, the Huntress report isn’t an indictment of one product. It’s a fire alarm for our entire industry. We’ve become too reliant on tools that trade security for convenience. It’s time to stop treating our RMMs like a simple helpdesk tool and start treating them like what they are: the most powerful, and potentially most dangerous, key on our keyring.

Darian Vance

Lead Cloud Architect & DevOps Strategist

With over 12 years in system architecture and automation, Darian specializes in simplifying complex cloud infrastructures. An advocate for open-source solutions, he founded TechResolve to provide engineers with actionable, battle-tested troubleshooting guides and robust software alternatives.

🤖 Frequently Asked Questions