Written By: Frank Saulsbery
THE LATEST THOUGHTS FROM THE FOUNDER
A running column from Frank Saulsbery. Not a sales pitch, just the way he’d explain it if you pulled up a stool next to him. Meet Frank →
A SNEAK PEEK…
“EDR is not just trying to keep threats out. It is there to catch them when they inevitably get in and stop them before they turn into a bigger problem.”
You’re in a meeting, or talking with your IT provider, and someone says, “We’ve got EDR in place.” And you’re sitting there thinking, “That sounds important… but what does it actually do?”
That’s a fair question. Most business owners don’t need more acronyms, they just want to know if they’re protected. So let’s break it down in plain terms.
EDR stands for Endpoint Detection and Response. “Endpoints” is just a fancy way of saying the devices your team uses every day. Laptops, desktops, servers, even phones. These are the places where most attacks actually happen. EDR uses a combination of lightweight endpoint agent with 24/7 human-led Security Operations Center (SOC) analysis to detect, disrupt, and remediate threats. It focuses on behavioral analysis to spot "persistent footholds" (malicious persistence) and ransomware, rather than just relying on signatures.
In simple terms, EDR is like having a security guard that doesn’t just check IDs at the door, but walks around inside the building watching for anything unusual.
Older antivirus software worked off a list. If something matched a known virus, it would block it. That worked well years ago, but today’s threats change too fast. Many attacks are brand new, or they disguise themselves so they don’t match anything on that list.
EDR takes a different approach. Instead of only looking for known bad files, it watches behavior. It pays attention to what programs are trying to do. If something starts acting suspicious, like trying to access files it shouldn’t or rapidly changing lots of data, EDR steps in.
Here’s how it works, a small piece of software sits on each device. It quietly watches activity like programs running, files being opened, and logins. That information is analyzed in real time. If something doesn’t look right, the system can do a few things. It can stop the program, isolate that computer from the rest of your network, and alert someone to take a closer look. And it keeps a record of what happened, so if something does get through, you can see how it got in and what it touched.
A simple example helps. Let’s say someone in your office clicks on a bad email link. A program starts running that begins encrypting files, which is what ransomware does. An old antivirus might miss it if it has never seen that exact version before. EDR sees the behavior. It notices a program suddenly trying to lock down a bunch of files quickly. That is not normal. So it stops it, isolates the computer, and sends an alert before it spreads.
EDR is not magic, and it is not a set-it-and-forget-it tool. It is powerful, but it still needs someone paying attention. It generates alerts, and those alerts need to be reviewed by someone who knows what they are looking at. Without that human layer, it is kind of like having security cameras with no one watching the screen.
For your business, this means EDR is one of the most important pieces of a modern cybersecurity setup, but it works best as part of a bigger picture. It complements antivirus, good system setup, and most importantly, monitoring.
If there is one simple takeaway, it is this. EDR is not just trying to keep threats out. It is there to catch them when they inevitably get in and stop them before they turn into a bigger problem.
So a good question to ask yourself is, “If something unusual started happening on one of our computers right now, would anything notice and respond?” If you are not sure, that is a great place to start a conversation. Not about buying a tool, but about making sure someone or something is actually watching what matters.
That’s how I see it, anyway, and I’d enjoy hearing how you see it. None of this is a sales pitch. It’s just the kind of thing I’d talk through with you if we were sitting across the table. If it raised a question, or you think I have it wrong, I want to hear about it.
My door is always open. Whether you want to talk this through or just say hello, you can reach me anytime.
Network Solutions Unlimited is a generational managed IT services provider based in Decatur, Illinois, serving businesses and nonprofits with genuine support and decades of trusted relationships. Led by Baily Saulsbery and founded by her father Frank, we're not just your IT provider; we're your neighbors who happen to be really good at technology. Contact us today to experience IT support that actually cares.
