Alternatives to an MDR service, compared

What an MDR service gives you

The main alternatives to an MDR service are building an in-house SOC, a co-managed SOC shared with a provider, a managed security service provider (MSSP), or an in-house team supported by an AI SOC analyst, and many organisations end up with a mix. Which one fits depends on how much control you want, how much context about your business the work needs, and who you want taking response actions.

Managed detection and response, or MDR, is a service in which an outside team watches your security tools, investigates what they raise and, within agreed limits, acts on what it finds. Most MDR services bring their own endpoint detection tool or work with yours, staff a monitoring centre around the clock, and promise to tell you, or act, when they find something real.

For many organisations that is exactly the right answer. It gives round-the-clock cover without hiring a night shift. It brings people who see attacks across many customers and recognise patterns early. It turns a hard hiring problem into a contract. And it can be in place in weeks, where building a team takes much longer.

So the question is rarely whether MDR is good. It is whether its trade-offs suit you, and what the alternatives trade instead.

Where buyers feel MDR falls short

The complaints buyers raise about MDR tend to be about fit, not competence. They are worth stating fairly, because the same points apply to some alternatives as well.

The first is visibility. You receive a conclusion, sometimes with a short note, but not always the searches behind it. When an alert is closed as harmless, you may not be able to see what was checked. The second is context. An outside team serving many customers knows attacks well but knows your business less well: which servers run payroll, which administrator runs odd scripts on Fridays, which supplier connects at night. Without that, verdicts can be generic, and escalations can be noisy.

The third is response. Many MDR services take actions themselves, such as isolating a machine or disabling an account. That is a strength during an attack, and a worry for organisations where an outside party switching off a production system needs more sign-off. The fourth is cost as you grow: MDR is often priced by the number of machines or users covered, so the bill rises with the business, whether or not the alert load does.

• Limited sight of the working behind each verdict
• Less knowledge of your business processes and normal activity
• Response actions taken by a third party on your systems
• Cost that grows with the number of machines or users
• Dependence on the provider’s choice of detection tools

What the alternatives to MDR are

Each alternative moves the line between what you do and what someone else does. None is free of trade-offs, and the right one depends on your size, your rules and the people you already have.

An in-house SOC gives the most control and the deepest business knowledge, at the highest cost and the hardest hiring. A co-managed SOC splits the work: a provider covers nights and weekends or the first look, and your team handles investigation and decisions. An MSSP usually runs your SIEM and monitoring and forwards what it judges important, often with less investigation than MDR and less response. An AI SOC analyst gives an in-house team a first investigator that works through the queue and hands people verdicts with the evidence attached. A hybrid mixes these, for example an MSSP for log management and an AI analyst plus a small team for investigation.

• In-house SOC: your own analysts, tools and processes; full control and context
• Co-managed SOC: a provider and your team share the work under agreed rules
• MSSP: a provider runs monitoring and tools, forwards alerts it judges important
• AI SOC analyst plus in-house team: software investigates first, your people review and decide
• Hybrid: a mix, such as an MSSP for log management and an AI analyst for investigation

How MDR and its alternatives compare side by side

The comparison below uses the questions buyers most often ask. Read it as a starting point; individual providers vary a great deal within each type, so check each claim against the contract in front of you.

Notice that no option scores well on everything. The ones that give you the most control ask the most of your people, and the ones that ask least of your people give you least sight of the work.

• Who investigates: MDR, the provider; in-house, your analysts; co-managed, shared; MSSP, the provider, often lightly; AI analyst, the software first, then your people
• Who takes response actions: MDR, often the provider; in-house, you; co-managed, as agreed; MSSP, usually you; AI analyst, you, on its recommendations
• Sight of the working: MDR, varies; in-house, full; co-managed, partial to full; MSSP, often limited; AI analyst, full if each step is recorded
• Business context: MDR, limited; in-house, deep; co-managed, good; MSSP, limited; AI analyst, as deep as the context you give it
• Round-the-clock cover: MDR, yes; in-house, only with shifts; co-managed, usually; MSSP, usually; AI analyst, the first look runs at any hour, people still need an on-call rota
• Time to start: MDR, weeks; in-house, many months; co-managed, weeks to months; MSSP, weeks; AI analyst, weeks
• How cost grows: MDR, with machines or users; in-house, with people; co-managed, both; MSSP, with data or devices; AI analyst, depends on the supplier’s pricing

How to decide whether to keep MDR or switch

Start with what you actually need, not with the label. Write down who must approve an action that takes a production system offline, how much you need to see behind each verdict to satisfy your auditors, and how much of your detection relies on knowing your business. These three answers rule options in or out faster than any comparison of features.

Then look at your people. If you have no security staff and no plan to hire, MDR or an MSSP is the realistic route, and the right move may be to choose a better-fitting provider rather than a different model. If you have a small team stretched by the alert queue, an AI analyst or a co-managed arrangement adds capacity without handing over decisions. If you have a full team, the question is mostly about tools and nights.

Finally, test before you commit. Run the alternative alongside your current service for a period, on the same alerts, and compare the verdicts, the evidence behind them and the time your team spent. A side-by-side trial answers questions no sales meeting can.

• Who must approve response actions on production systems?
• How much of the working behind each verdict do you need to see?
• How much business context does good detection need in your environment?
• Do you have, or plan to hire, security analysts?
• How will cost change if the business doubles in size?
• Can you run a trial side by side on the same alerts?

What to check when moving away from MDR

If you switch, plan the overlap. Keep the existing service running until the new arrangement has handled a full cycle of your normal activity, including month-end and any seasonal peaks. Check the notice period in your contract early, and agree what the provider hands back when it ends.

Ask for your data. Past alerts, the provider’s verdicts and notes, any tuning they did to detection rules and any list of exceptions are worth keeping. They describe your environment, and losing them means relearning it.

Make sure the response side is covered from day one. If the MDR provider used to isolate machines at night, decide who now takes that decision, how they are reached, and what they are allowed to do without waking a manager.

How armor360 approaches it

armor360 is an AI SOC analyst for in-house teams, managed security providers and regulated organisations. It takes alerts from the tools you already run, investigates each one, and gives a person a verdict with the evidence cited and recommended next steps. It takes no response actions: armor360 recommends and people act.

Each verdict shows the questions asked, the data read and the records kept, so your team can check the working. Business context you give at set-up, such as which machines serve which processes, shapes the verdicts. Pricing is by quote, sized to what you protect, with no charge per person.