Microsoft 365 security, hardened on purpose and watched around the clock.
For Midwest small and mid-size businesses running on Microsoft 365 with no security team or a thin one, our Microsoft 365 security work closes the places attackers actually walk in, default settings left untouched, identity with no conditional access, sharing left wide open, no audit trail, and sensitive data with no controls, then monitors the tenant 24/7 from our network operations center, so account takeover and data loss get harder and one accountable partner owns the outcome.
Where this breaks
Microsoft 365 ships with strong security, but most of it is optional and a lot of it is off the day the tenant is set up. The platform is rarely the weak point. The exposure is a tenant left at its initial settings while the business gets on with work, and Microsoft 365 security drifts one unmade decision at a time. A year on, the controls that would stop a real attack were never turned on.
Across the firms we work with, we see the same gaps. Multi-factor that is technically available but never enforced, and no conditional access deciding who can sign in, from where, on what. Sharing and external access left wide open, with links created once for a single file that never expired. No audit or alerting, so a mailbox takeover or a strange admin change happens quietly with nothing watching. And sensitive data, contracts, client records, financials, sitting in Microsoft 365 with no data loss prevention to keep it from walking out by email or a careless share. None of that is carelessness. It is what happens when a business adds Microsoft 365 to get work done and never gets the time to harden how it is secured over time.
None of this is only an IT problem. An unprotected login is the front door to email, files, and finance. Open sharing is a confidentiality and compliance problem. No audit trail means an incident is discovered late, if at all. Data with no controls is a breach waiting for a wrong click. Our Microsoft 365 security work turns on the protection you are already paying for and builds it into how the tenant is run, not a one-time project bolted on after a scare. We read the real exposure plainly, harden the gaps that carry the most weight first, and keep the controls current, so the tenant is harder to compromise and a problem at two in the morning gets a response at two in the morning.
What we do
Hardening is built around how your business actually uses Microsoft 365, not a fixed package. Every engagement starts with a read on the real exposure, then ties each control to an outcome you can feel.
Identity & Conditional Access
Multi-factor enforced on every account that matters, admin access controlled, and conditional access deciding who can sign in, from where, and on what device. Identity is the front door to everything in Microsoft 365, so this is where hardening earns its keep first.
Secure Defaults & Secure Score
The risky defaults closed and the controls Microsoft 365 already includes actually turned on, with your Microsoft Secure Score read as a baseline and improved on purpose. The protection you are paying for, put to work instead of assumed.
External Sharing Governance
Sharing and guest access governed: rules for who can share what, with whom, and for how long, and external links that expire instead of living forever. Collaboration stays open where it should be and closed where it should not.
Audit & Alerting
Sign-ins, admin actions, and risky activity logged and watched, with alerts on the events that signal a takeover or a misconfiguration. A problem surfaces early with a response, rather than being found weeks later.
Data Loss Prevention
Sensitive data in email, files, and Teams identified and protected with DLP policies tuned to your business, so contracts, client records, and financials do not walk out by a careless share or a wrong attachment.
24/7 Monitoring, CIS and NIST
Your tenant watched around the clock from our network operations center, and built to recognized standards, the CIS Controls and the NIST Cybersecurity Framework, so your Microsoft 365 security is measured against a baseline auditors, insurers, and your customers recognize, not against opinion.
One partner, one price, one curated stack
Microsoft 365 security is usually sold as a pile of add-on licenses and point products, each billed on its own, none of them accountable for the whole. We do it the other way. One curated security stack we have chosen and stand behind, one predictable price, and one team accountable for the outcome, so you are not stitching tools together or chasing vendors when something in the tenant looks wrong.
Behind it, our network operations center watches your tenant around the clock. A suspicious sign-in, a mailbox rule that should not exist, or an admin change at two in the morning gets a response at two in the morning, not on Monday when someone reads the alerts. And we build to recognized standards, the CIS Controls and the NIST Cybersecurity Framework, so your Microsoft 365 security is measured against a baseline auditors, insurers, and your own customers recognize, rather than against opinion.
What better looks like
The difference between a Microsoft 365 tenant left at its defaults and one hardened on purpose, in your own operational terms.
Left at the defaults
- Multi-factor available but not enforced, no conditional access
- External sharing wide open, links that never expire
- No audit trail and nothing alerting on a takeover
- Sensitive data in email and files with no controls
- Security left at whatever the tenant shipped with
- Alerts firing into an inbox nobody watches
Hardened with DTS
- Multi-factor enforced where it counts, conditional access deciding access
- Sharing governed, external access that expires by policy
- Sign-ins and admin actions logged, with alerting that gets a response
- Data loss prevention protecting what matters most
- Secure Score read as a baseline and improved on purpose
- Monitored 24/7 from our NOC, with a team that responds
How it starts
A calm, practical start. We read the real exposure before we touch anything, and we harden the gaps that carry the most weight first, so the team keeps working the whole way through.
See the real exposure
We review the tenant in full: how identity and multi-factor are configured, what sharing and external access allow, whether anything is logged, where sensitive data lives, and what your Secure Score says, so the picture is clear before anything changes.
Harden identity first
We enforce multi-factor where it counts, tighten admin access, and put conditional access in place, so the most common way in, an unprotected login, is closed off first.
Govern sharing, protect data
We set sharing and guest rules that hold, expire stale external access, and put data loss prevention around the files and email that matter, so collaboration stays open without leaking what should stay in.
Monitor and keep current
We turn on audit and alerting, watch the tenant 24/7 from our NOC, and keep the controls reviewed as the business changes, so Microsoft 365 security stays the daily default rather than drifting back to the defaults.
GP Mfg. needed an IT partner we could trust to support our growth, improve security, and modernize the working environment while reducing unnecessary cost. DTS helped create a smoother, more scalable technology foundation and reduced cost more than 30% compared to our prior tech management provider. Better outcomes, lower cost.
Where to go next
Hardening is strongest when it sits on a tenant run on purpose and a tested recovery. From here, most businesses look at how those pieces fit together.
Cloud & Microsoft 365
The operations side: tenant setup, licensing discipline, clean migration, and Teams and SharePoint kept usable as you grow.
Explore →Cybersecurity
The whole picture beyond M365: identity, email, endpoints, data, and recovery, with security built into how your IT is run.
Explore →Backup & Business Continuity
Recovery you have actually tested, including the data that lives in Microsoft 365.
Explore →Managed IT Services
The steady foundation security is built into: helpdesk, endpoints, networks, and vendors, coordinated.
Explore →Common Questions
Straight answers to what businesses ask us before they start.
Explore →Common questions about Microsoft 365 security
Is Microsoft 365 not secure on its own?
How is this different from your Microsoft 365 management page?
What is conditional access and do we need it?
Will hardening get in the way of how people work?
Can this help us meet cyber-insurance and compliance requirements?
How is this priced?
Start with a clear read on your Microsoft 365 exposure
A Cyber Risk Assessment shows where your Microsoft 365 tenant is actually exposed across identity, sharing, audit, and data, and what to harden first, in plain language, with no changes to your environment and no obligation to switch providers.