Cyber Security
Managed SIEM & SOC as a Service
Centralised security monitoring and expert analysts watching your environment around the clock.
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- Customer satisfaction
- 100%
- Years of combined experience
- 35+
- Average first response
- 9 min
Overview
Round-the-clock monitoring, without building your own SOC
Building your own Security Operations Centre is expensive and hard to staff. Most businesses can’t justify it, but still need the visibility.
WhizzIT gives you managed SIEM and SOC-as-a-Service: centralised log collection, correlation and 24/7 expert monitoring, so threats are spotted and actioned fast.
Log collection, correlation and retention are delivered as a service, so you get the evidence trail and audit reporting without building a platform or recruiting analysts. 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. WhizzIT is Cyber Essentials certified and a Microsoft Cloud Solution Provider, so our security fundamentals are independently assessed rather than simply claimed.
Cyber SecurityManaged SIEM & SOC
What’s included
- Centralised log collection and correlation
- 24/7 monitoring by security analysts
- Threat detection and alerting
- Incident investigation and response
- Compliance and audit reporting
- Scales without building your own SOC
The idea
What a SIEM is actually for
A SIEM does something quite specific: it gathers logs from everywhere, puts them into a common format, and looks for patterns across them that no single system could ever see on its own.
What gets collected
- Firewall and network device logs
- Microsoft 365 and identity sign-in activity
- Endpoint and server security events
- Cloud infrastructure audit logs
- Email security and filtering events
- Administrative and permission changes
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Three boring events, one attack
Your firewall records a connection from an unfamiliar country. Microsoft 365 records a successful sign-in for a finance account. An endpoint records a script running out of a temporary folder. Individually each one is unremarkable and would never justify waking anybody. In sequence, within nine minutes, they describe an attack in progress.
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Having logs is not using them
Correlation is the difference between having logs and being able to use them. Most businesses already produce all the evidence they need and simply have it scattered across six consoles that nobody compares, each retained for a different length of time, several of which quietly overwrite themselves.
Honest answer
How this differs from MDR, and who is watching
These two get sold interchangeably and they are not the same thing. Managed detection and response is focused: it watches endpoints and identities for behaviour that looks like an attack and acts to contain it. SIEM and SOC is wide: it collects from everything, correlates across sources, keeps the history, and gives you the evidence trail. Most businesses start with MDR because it stops incidents. SIEM earns its place when you need to see across the whole estate, or you have compliance and audit obligations to satisfy.
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Who is watching, and when
In working hours alerts raise a ticket in our helpdesk and our engineers investigate. Outside those hours monitoring and first response are handled by a specialist partner we work with. We would rather set that out plainly than imply we run our own overnight operations centre, because a team our size cannot honestly staff three shifts and you can check.
Side by side
Managed detection and response vs managed SIEM and SOC
| Consideration | Managed detection & response | Managed SIEM & SOC |
|---|---|---|
| Scope | Focused. Endpoints and identities | Wide. Collects from everything that produces logs |
| What it does | Watches for behaviour that looks like an attack and acts to contain it | Correlates across sources to find patterns no single system could see alone |
| Main output | Threats stopped | Evidence trail and a timeline you can produce |
| History kept | Detection and response, in the moment | Centralised retention, so an intrusion weeks old can still be investigated |
| Usual reason to buy | Stopping incidents. Most businesses start here | Estate-wide visibility, or compliance, audit and insurance obligations |
| Who is watching | Both: in working hours alerts raise a ticket our engineers investigate. Outside those hours, monitoring and first response are handled by a specialist partner we work with |
Why retention matters
You cannot investigate what you never kept
When something does happen, the first question is always how long this has been going on.
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Attackers wait
Intrusions are routinely weeks old before anything visible happens. If your firewall keeps a fortnight of logs and your endpoint tooling a month, the answer to how they got in may simply no longer exist. Centralised retention is what makes that question answerable.
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Insurers ask
Cyber insurance applications increasingly ask directly whether you have centralised logging and monitoring. The answer affects your premium, and after an incident it affects whether a claim is straightforward. Being able to produce a timeline is worth a great deal at that point.
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Auditors want evidence
Saying that only authorised people can reach the finance system is a claim. Showing who accessed it, when, from where, and what changed is evidence. Centralised logs and reporting are what turn one into the other, which is why this tends to arrive on the agenda alongside a contract or a certification.
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.
No obligation
Not sure where to start?
Tell us the problem and we will point you to the right fix, even if that turns out not to be us.
Billy gave me a wonderful service. I would recommend him highly.
How we help
What we deliver
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Collect
We centralise logs and events from across your environment.
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Correlate
SIEM and analysts spot the patterns that signal an attack.
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Act
Incidents are investigated and actioned quickly, day or night.
Good to know
Frequently asked questions
Not covered here? Ask us directly — same working day response.
020 4634 2518What is SIEM and SOC-as-a-Service?
SIEM is the platform that collects logs from across your systems, normalises them and correlates events to spot patterns no single tool would catch. A SOC is the function that reviews what it produces and acts. Buying both as a service means you get the capability without recruiting analysts or building a platform.
How is this different from MDR?
MDR is deep and narrow: endpoints and identities, watched for attack behaviour, contained when something is real. SIEM and SOC is broad: everything logged, correlated across sources, retained so it can be investigated, and reportable for audit. They overlap a little and answer different questions. Most businesses want MDR first.
Do we need this if we already have MDR?
Not necessarily, and we will say so. MDR covers the incidents that matter most for a lot of smaller businesses. SIEM becomes worthwhile when you have more systems than a couple of consoles can sensibly cover, when you need log history for investigations, or when a contract, insurer or certification requires centralised monitoring and reporting.
Is someone watching 24/7?
In working hours alerts create a ticket in our helpdesk and our own engineers investigate. Outside working hours a specialist partner handles monitoring and first response so anything urgent is acted on rather than left until morning. We prefer to describe the split accurately rather than claim an in-house overnight team we do not have.
Does it help with compliance and insurance?
Yes, and this is often the trigger for buying it. Centralised logging, monitoring and reporting support a lot of audit requirements, and cyber insurers increasingly ask whether they are in place. The practical benefit is being able to produce a timeline on request instead of assembling one from six consoles under pressure.
How long are logs kept?
Retention is agreed with you, and it is worth thinking about properly rather than accepting a default. Attackers are commonly inside a network for weeks before acting, so retention shorter than that leaves you unable to answer how an incident began. Longer retention costs more in storage and buys you the ability to investigate.
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.
