Cyber Security
Managed Detection & Response
Continuous threat detection and rapid response across your endpoints and cloud, around the clock.
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- Customer satisfaction
- 100%
- Years of combined experience
- 35+
- Average first response
- 9 min
Overview
Detecting and stopping threats in real time
Modern attacks move fast, often outside working hours. Prevention alone isn’t enough, you need to detect and respond quickly when something gets through.
WhizzIT’s MDR combines advanced tooling with expert analysis to detect threats across your endpoints and cloud and respond rapidly to contain them.
Detection and response covers your endpoints, Microsoft 365 identities, servers and cloud, with containment happening first so a problem stops spreading while it is investigated. Everything runs through the same UK service desk that handles your day-to-day tickets, so there is no separate team to chase. Across 2025 our average first response time was 9 minutes and our average resolution time was 6 hours, measured across every ticket we handled. We are a team of five engineers supporting more than 30 UK businesses, from two-user teams to organisations of 150+ users.
Cyber SecurityManaged Detection & Response
What’s included
- Continuous threat detection
- Endpoint and cloud coverage
- Rapid response and containment
- Expert-led investigation
- Threat intelligence built in
- Clear reporting and guidance
The gap MDR fills
Antivirus asks one question
Have I seen this file before? That question works right up until an attacker uses something it has not seen, or does not use a file at all.
Behaviour we watch for
- Sign ins from impossible locations or new countries
- Multi-factor prompts being bombarded or bypassed
- Files being encrypted in bulk
- Endpoint protection or logging being switched off
- New mailbox forwarding rules on finance accounts
- One machine scanning or reaching across the network
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Attacks that carry no malware at all
Someone gets hold of a working username and password, often from a convincing phishing page, and simply logs in. Nothing has to be installed, so nothing gets flagged. From there the attacker uses tools that are already on the machine, which is why this approach is known as living off the land. To antivirus it all looks like normal admin work.
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Why behaviour beats signatures
MDR looks at behaviour instead of file signatures. It is less interested in what a file is called and more interested in what is happening: an account signing in from two countries an hour apart, a process quietly turning off protection, files being encrypted in bulk, a workstation suddenly scanning the rest of the network. Those patterns are hard to disguise, because they are the attack itself rather than the tooling used to deliver it.
Side by side
Traditional antivirus vs managed detection and response
| Consideration | Traditional antivirus | Managed detection & response |
|---|---|---|
| The question it asks | Have I seen this file before? | What is actually happening on this account or device? |
| Detects by | File signatures | Behaviour, regardless of what a file is called |
| Stolen password used to log in | Missed. Nothing is installed, so nothing gets flagged | Caught. Sign ins from impossible locations, MFA prompts being bombarded or bypassed |
| Attacker using tools already on the machine | Missed. Living off the land looks like normal admin work | Caught. The behaviour is the attack itself, not the tooling used to deliver it |
| Where it looks | The endpoint | Endpoints, Microsoft 365 and identity, servers and cloud |
| What happens on a real detection | Raises an alert | Device or account contained so it stops spreading, alert investigated, you are told what was found and what was done |
| Outside working hours | Alerts wait until someone looks | Monitoring and first response handled by a specialist partner we work with |
How ours works
Who is actually watching, and when
This is the question worth asking any provider, so here is our answer in plain terms. During working hours, when the security tooling raises an alert it creates a ticket in our helpdesk. It lands in the same queue our engineers already work to, and one of them picks it up and investigates. Outside those hours, monitoring and first response are handled by a specialist partner we work with, who can act on anything urgent rather than leaving it until morning.
A lot of providers our size imply they run their own round the clock security operations centre. Very few actually do. A small team cannot staff three shifts properly, and pretending otherwise means alerts sit unread overnight, which is exactly when ransomware tends to run. Being straight about the split matters more than sounding impressive, and it is easy for you to verify.
The affected device or account is contained so the problem stops spreading, then the alert is investigated properly to work out what happened and how far it got, and you get told what we found and what we did about it. What you do not get is a monthly PDF of graphs with nobody having looked at any of it.
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Why we spell that out
A lot of providers our size imply they run their own round the clock security operations centre. Very few actually do. A small team cannot staff three shifts properly, and pretending otherwise means alerts sit unread overnight, which is exactly when ransomware tends to run. Being straight about the split matters more than sounding impressive, and it is easy for you to verify.
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What happens when something looks real
The affected device or account is contained so the problem stops spreading, then the alert is investigated properly to work out what happened and how far it got, and you get told what we found and what we did about it. What you do not get is a monthly PDF of graphs with nobody having looked at any of it.
Coverage
Where it looks
Laptops matter, but most incidents we see start with an identity rather than a device.
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Endpoints
Windows machines and Macs, wherever they happen to be. Home broadband, a client site or the office makes no difference, because the agent reports back the same way in all three.
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Microsoft 365 and identity
Sign in activity, mailbox rules and permission changes. As a Microsoft Cloud Solution Provider we manage this side directly, and a forwarding rule quietly added to a finance mailbox is often the first solid sign of a compromise.
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Servers and cloud
On premise servers and cloud infrastructure, where an attacker will usually head next once they have a foothold, because that is where the data and the backups live.
Certified & accredited
Credentials you can check
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Cyber Essentials certified
Independently assessed against the UK government-backed scheme, so our security fundamentals are verified rather than simply claimed. We help clients certify too. How Cyber Essentials helps you -
Microsoft Cloud Solution Provider
A direct partnership with Microsoft. We license, deploy and support Microsoft 365 and Azure for you, with escalation straight to Microsoft when it is needed. Our Microsoft cloud services
Cyber Essentials is a UK government scheme run by the National Cyber Security Centre, delivered by IASME. You can verify what the certification covers at source.
Straight answers
Want to know what this would cost?
No rigid packages and no surprises. We price around your team, systems and goals, then give you a clear quote.
Amazing IT services. Very efficient and professional with great communication throughout.
How we help
What we deliver
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Detect
We monitor endpoints and cloud continuously for signs of attack.
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Respond
Threats are investigated and contained rapidly by our experts.
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Report
You get clear reporting and guidance to keep improving.
Good to know
Frequently asked questions
Not covered here? Ask us directly — same working day response.
020 4634 2518What is MDR?
Managed Detection and Response pairs security tooling with people who look at what it finds. The tooling watches for suspicious behaviour across your devices, Microsoft 365 and servers. When something looks real, a person investigates it and acts to contain it. The managed part is the bit that matters, because software on its own only produces alerts.
Is someone watching 24/7?
In working hours, alerts raise a ticket in our helpdesk and our own engineers investigate. Outside working hours, monitoring and first response are covered by a specialist partner who can act on anything urgent. We would rather tell you that plainly than imply we staff our own overnight security operations centre, because most providers our size do not.
How is MDR different from antivirus?
Antivirus checks whether a file matches something already known to be bad. MDR watches behaviour, which catches attacks that use no malware at all, such as someone logging in with a stolen password and using tools already present on the machine. You want both. Antivirus stops the obvious, MDR catches what walks straight past it.
We have Microsoft 365 Business Premium. Isn’t that enough?
Business Premium includes genuinely capable security tooling, and we often build on exactly that rather than selling you something extra. The gap is not the licence, it is that the alerts it generates go to nobody in particular. MDR is the layer that turns those alerts into someone investigating and responding.
What happens when something is detected?
The affected account or device is contained first so the problem stops spreading. Then it gets investigated to establish what happened, how it got in and what it reached. You are told what we found and what we did, in language you can pass to your insurer or your board without a translator.
Does MDR help with Cyber Essentials or cyber insurance?
Cyber Essentials does not require MDR, though the malware protection and secure configuration controls sit comfortably alongside it. Insurers are a different matter. Many now ask directly whether you have monitoring and response in place, and the answer can affect both your premium and whether a claim is paid. We hold Cyber Essentials certification ourselves and can take you through it.
Technology partners
Brands we partner with
We hold partner status with the vendors behind the tools we deploy, so your licensing, support and escalation come direct from the source rather than through a reseller chain.
