MFA, conditional access and Defender configured properly from day one, not left on default settings and hoped for the best.
Microsoft 365's default settings leave real gaps — we close them with proper conditional access and threat protection.
Configuration mapped to Cyber Essentials controls, so your tenant setup supports certification rather than working against it.
Security configuration is reviewed on an ongoing basis, not configured once and left to quietly go stale.
Microsoft 365 ships with a genuinely strong security foundation, but the default configuration is built to get a new tenant working quickly, not to be maximally secure for your specific business. Multi-factor authentication may be recommended rather than enforced, conditional access policies that would block sign-ins from unexpected countries or unmanaged devices are often left unconfigured, and Microsoft Defender's threat protection features frequently sit at a lower tier than what your licence actually entitles you to use. A proper Microsoft 365 security setup UK businesses can rely on closes these gaps deliberately, rather than assuming "it's Microsoft, so it must already be secure."
Email remains the most common way attackers get into a UK small business, and Microsoft 365 is usually where that fight actually happens — phishing attempts, business email compromise, and credential theft all target the mailbox first. A properly configured tenant with enforced MFA, conditional access and Defender for Office 365 anti-phishing policies stops the overwhelming majority of these attempts before they reach an inbox. Without that configuration, a single compromised password can be enough for an attacker to access company email, impersonate staff, and pivot into other systems — regardless of how good your antivirus or firewall might otherwise be.
Cyber Essentials certification adds another reason to get this right. Several of the scheme's five controls — access control, secure configuration, and malware protection among them — map directly onto how your Microsoft 365 tenant is set up. A tenant configured properly from the outset makes Cyber Essentials assessment straightforward; one left on default settings often means uncomfortable surprises during the assessment, or a certification attempt that fails on points that could easily have been addressed in advance.
Cyber insurance is another area where this catches businesses out. Insurers increasingly ask specific questions about MFA enforcement, conditional access and endpoint protection at renewal, and vague or inaccurate answers can affect both premiums and whether a claim is honoured after an incident. Being able to answer those questions precisely, because the tenant is actually configured the way you believe it is, is a genuine practical benefit of getting this right rather than assuming it and hoping.
We start with a Secure Score review and a full audit of your current tenant configuration — what's enforced, what's merely recommended, and what's not configured at all. From there, we build a prioritised plan that closes the highest-risk gaps first, rather than a generic checklist applied identically to every client regardless of their actual risk profile.
We configure MFA as a mandatory requirement for every user, not an optional prompt users can dismiss indefinitely, and set it up in a way that minimises friction for genuine logins while blocking unauthorised access attempts.
We configure conditional access policies based on your actual working patterns — blocking sign-ins from unexpected locations, requiring managed or compliant devices for sensitive access, and flagging genuinely risky sign-in attempts for review.
Anti-phishing, safe links and safe attachments policies are configured to actually catch malicious email, rather than left at whatever baseline setting shipped with your licence tier.
A complete tenant security configuration for UK businesses.
A full review of your current tenant configuration against Microsoft's own security benchmarks, with a prioritised remediation plan.
MFA configured as mandatory for every user, with sensible exceptions handled through conditional access rather than blanket exclusions.
Sign-in rules based on location, device compliance and risk level, built around how your team actually works.
Anti-phishing, safe links and safe attachment policies configured to catch threats your licence already entitles you to block.
Regular reviews of Secure Score, sign-in logs and configuration drift, so security doesn't quietly weaken over time.
Where Microsoft offers a security setting as optional, we assess whether your business needs it enforced instead — most do, and default "recommended" settings are frequently ignored by users if left optional.
We check Secure Score and sign-in activity on an ongoing basis, not as a one-off project that's forgotten the day it's finished.
From an initial audit to an ongoing, monitored security posture.
We review your current tenant configuration, Secure Score and sign-in activity in detail.
We agree a prioritised remediation plan, addressing the highest-risk gaps first.
We implement MFA, conditional access and Defender policies, testing each change carefully.
We review your security posture on an ongoing basis, adjusting as your team and risk profile change.
We start every engagement with an honest Secure Score audit, so you see exactly where your tenant currently stands before we recommend anything, rather than being told everything needs fixing regardless of actual risk.
MFA and conditional access are configured as enforced controls, not optional recommendations users can dismiss — this single change closes the gap responsible for the majority of account compromises we see.
Defender for Office 365 is configured to actually use the threat protection features your licence already includes, rather than left at a generic baseline that leaves obvious gaps.
We map configuration directly to Cyber Essentials controls, so if certification is on your roadmap, your tenant setup already supports it rather than working against it.
As an IT support provider with EDR endpoint protection and 24/7 monitoring built into our managed plans, Microsoft 365 security sits alongside your wider cyber security posture, not as an isolated project handled by a different supplier.
Security isn't configured once and forgotten — we review Secure Score, sign-in activity and configuration drift on an ongoing basis, because a tenant that was secure a year ago can quietly become less so as settings change, new features ship, or new starters get onboarded without the same rigour as the original setup.
We also translate configuration changes into plain English for the people who need to sign off on them — a director doesn't need to understand conditional access policy syntax, but they do need to know what risk a change closes and what, if anything, changes for staff day to day.
We treat your tenant configuration as core security infrastructure, not an IT admin afterthought.
We show you exactly where your tenant stands today, before recommending any changes.
Mandatory multi-factor authentication configured for every user, closing the most common attack path.
Sign-in rules based on location, device and risk level, not a generic default policy.
Anti-phishing, safe links and attachment policies configured to actually work, not left at baseline.
A named contact for security questions and configuration changes, not a generic support inbox.
Configuration mapped directly to Cyber Essentials controls, supporting certification rather than complicating it.
Managed plans bundle EDR endpoint protection and 24/7 monitoring alongside your Microsoft 365 security setup.
Secure Score and sign-in activity checked on an ongoing basis, not configured once and forgotten.
A clear quote after the initial audit, with plans starting from £20 per user per month.
The cost of a Microsoft 365 security setup depends on your current Secure Score, how many users need conditional access policies configured, and whether Cyber Essentials certification is part of the scope. Our managed IT plans start from £20 per user per month and can bundle tenant security configuration, EDR endpoint protection and 24/7 monitoring together under one predictable cost. We scope an exact, fixed quote after the initial audit rather than publishing a generic price list that won't reflect your setup — get in touch for a free consultation and a clear security review.
The most common gap we find is MFA that's technically available but not enforced — users are given the option to set it up and a portion never do, leaving exactly the accounts most likely to have a weak or reused password unprotected. The second is conditional access left entirely unconfigured, so there's no distinction between a login from a company laptop on the office network and one from an unrecognised device on the other side of the world at 3am. The third is Defender features that a licence already includes sitting at a generic default configuration rather than being tuned to actually catch the kind of phishing and impersonation attempts a specific business is likely to face. Each of these is straightforward to fix once identified, which is exactly why an upfront audit tends to be the highest-value first step — most of the risk in a Microsoft 365 tenant comes from a handful of settings that were simply never turned on, not from anything genuinely difficult to configure.
Ask exactly how MFA is configured — "recommended" and "enforced" are very different things, and only one of them actually stops an attacker with a stolen password. Ask whether conditional access is built around your specific working patterns or copied from a generic template applied to every client.
Check for Cyber Essentials alignment: if certification is on your roadmap, confirm the provider understands exactly how tenant configuration maps to the scheme's controls, rather than treating it as a separate, unrelated exercise.
Getting started: we offer a free consultation and Secure Score audit before any commitment, so you know exactly where your tenant stands and what improving it would involve, and we'll flag anything that needs urgent attention rather than burying it in a lengthy written report.
Delivery model
Tenant security configured and monitored remotely across the UK, with London on-site visits available where hardware needs it.
microsoft 365 security setup uk
Enforced MFA, conditional access and Defender configuration for UK Microsoft 365 tenants, aligned to Cyber Essentials controls.
cyber essentials microsoft 365
Tenant security configuration mapped directly to Cyber Essentials controls, supporting certification rather than complicating it.
Got questions about Microsoft 365 security? Here are the ones we're asked most.
It has a strong security foundation, but key protections like enforced MFA and conditional access are often left optional or unconfigured on a default tenant. A proper setup closes these gaps deliberately rather than relying on defaults alone.
Secure Score is Microsoft's own measure of how well your tenant configuration matches security best practice. It's a useful starting point for identifying gaps, though it shouldn't be treated as the only measure of your actual security posture.
Business Premium includes Defender for Business and device management, which extend protection further, but meaningful improvements — enforced MFA and conditional access — are available on lower tiers too. We'll advise based on your actual licensing and risk profile, rather than assuming everyone automatically needs the top tier regardless of what they actually do day to day.
There's a short adjustment period, but we configure MFA to minimise friction for genuine logins — using app-based approval rather than clunky methods — so day-to-day disruption is minimal once it's bedded in.
Yes, several Cyber Essentials controls map directly onto Microsoft 365 tenant configuration — access control, secure configuration and malware protection among them — so a properly configured tenant makes certification considerably more straightforward.
Yes, we can review what happened, close the gap that allowed it, and configure broader protections to reduce the chance of a repeat, including checking for any lingering unauthorised access, forwarding rules an attacker may have set up, or other signs of persistence left behind after the initial compromise.
Cost depends on your current Secure Score, user count and whether Cyber Essentials certification is part of the scope. Our managed plans start from £20 per user per month, and we scope an exact quote during a free consultation.
We recommend an ongoing review as part of managed IT support, since new features, staff changes and evolving threats can all cause a previously secure configuration to drift over time. A quarterly check is a reasonable minimum for most small businesses, with a more frequent review appropriate for higher-risk sectors.
Limited time offer — valid until 31/05/2026
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