Microsoft 365 Security Services in Chicago: Lock the Settings, Watch the Sign-Ins
Microsoft 365 security services in Chicago come down to two jobs: setting your account up so a stolen password is not enough to get in, and noticing quickly when someone gets in anyway. A common way into Microsoft 365 is a password taken through a phishing message or reused from another website. What happens afterward is where good settings and careful attention pay off.
Datastrive reviews and secures the Microsoft 365 environment your business runs on: sign-ins, multi-factor authentication, conditional access, mailbox rules, app permissions and the security settings that come with your license. This page covers protection of the Microsoft 365 account space itself. Filtering of incoming email is covered under email security, and day-to-day administration under Microsoft 365 management.
- Sign-in protection with multi-factor authentication and conditional access
- A review of the mailbox rules, forwarding and app permissions attackers use to stay hidden
- Security settings matched to the Microsoft 365 license you actually own
- Serving Chicago and businesses across Cook, DuPage, Lake and Will counties
Book a Free Microsoft 365 Security Review
Tell us a little about your business and someone from our team will reach out to set up a time. Your information stays private.
What Is Microsoft 365 Security?
Microsoft 365 security is the work of protecting the accounts, mailboxes, files and settings inside your company’s Microsoft 365 environment, which Microsoft calls a tenant. It is separate from protecting the computers that connect to it and from filtering the email that arrives.
Those other layers matter too. Computers and servers are covered under endpoint security, and phishing and spoofed messages are covered under email security. Phones and tablets are handled through mobile device management.
What an Attacker Does After They Have a Microsoft 365 Password
Once someone has a valid sign-in, they tend to follow a predictable pattern, and each step leaves a trace. These are common patterns, not a fixed script.
Resetting a password does not always end the problem, because inbox rules and app permissions can stay in place afterward. That is why a proper response checks all of them.
What Our Microsoft 365 Security Services Include
The scope depends on your agreement and your Microsoft 365 license. What we can see and control varies by license, so the first step is checking what you have.
Security Review of Your Microsoft 365 Tenant
We review your settings, administrator accounts, multi-factor authentication coverage, guest access and sharing options. You get a plain-English summary of what is in place, what is missing and what we recommend changing.
Multi-Factor Authentication and Sign-In Rules
We check that multi-factor authentication covers everyone who needs it, including executives and shared accounts, and that older sign-in methods that skip it are closed off. Conditional access rules decide who can sign in, from where and on what kind of device. For single sign-on and access across other applications, see identity and access management.
Mailbox Rules, Forwarding and Delegated Access
We review inbox rules, forwarding to outside addresses and who has access to other people’s mailboxes. These are among the first things attackers change, and among the easiest to miss.
App Permissions
Users can sometimes grant outside apps access to company data with a single click. We review which apps have access and limit who can approve new ones.
Built-In Security Settings
Microsoft includes security tools at different levels depending on the license. We set up the ones you own, and we tell you plainly which you do not have and whether an upgrade would be worth the cost.
Audit Logs and Retention
Microsoft 365 records who did what, but how long those records are kept depends on your license and settings. We check that logging is turned on and kept long enough to be useful when you need to look back.
Microsoft 365 MDR: What Managed Detection and Response Means for Your Tenant
Managed detection and response, or MDR, means people review security signals from your Microsoft 365 environment and act on them as agreed. The tools produce signals. The service is who looks at them, how often and what they do about it.
Where Microsoft 365 MDR is part of your agreement, we put in writing which signals are monitored, who reviews them, when, and what actions are authorized, such as signing a user out or disabling an account. We do not make response-time promises. If you want coverage across more than Microsoft 365, see managed detection and response.
Do You Need Microsoft 365 MDR, or Are Good Settings Enough?
For many small businesses, correctly configured settings, multi-factor authentication everywhere and a periodic review cover a lot of the risk. MDR adds value when you want someone watching for problems between reviews.
Monitoring tends to be worth considering when:
- Your team handles payments, client funds or sensitive client records by email
- A client or insurer has asked how your Microsoft 365 account is monitored
- Nobody on your team has time to review sign-in alerts
- You have had a compromised account before
We’ll tell you if you don’t need it. A small team with multi-factor authentication on every account, tight sign-in rules and a regular review may not need a monitoring service on top of that.
When a Microsoft 365 Account Is Compromised: What Happens Next
The first step is to report it quickly. Use the client portal, email at [email protected] or phone at (773) 863-3868, and do not delete anything. What we do after that depends on your agreement. The usual steps are:
- Confirm what happened and which account is involved.
- Secure the account: sign out active sessions and reset the password with multi-factor authentication.
- Check for hidden inbox rules, forwarding, delegated access and app permissions.
- Review audit records to see what was accessed or sent.
- Tell you what we found and what we recommend.
Whether a compromise creates a notification duty to clients or regulators depends on what was accessed and on your industry. Speak with your attorney or insurance carrier about that. We do not make response-time promises.
Who Does What: Microsoft 365 Security Responsibilities
Microsoft 365 Security Is One Layer of Your Defenses
Account security works alongside the other layers: email security for what arrives, endpoint security for the computers that connect, security awareness training for the people using the system, and backup and disaster recovery for recovery if something goes wrong.
Our approach is built around the CIS Controls v8.1 framework, which includes controls for account management, access control and audit log management. It guides what we review. It is not a certification and it does not guarantee outcomes. See all of our cybersecurity services for how the pieces fit together.
How Microsoft 365 Security Is Priced
Microsoft 365 security services are usually priced per user each month, either as part of a managed IT agreement or on their own. Your Microsoft licenses are billed separately, and if a stronger license would unlock a control you need, we show you the cost before you decide.
A proposal should show:
- The monthly cost of the security services we agree to provide
- Whether monitoring is included and at what scope
- Any recommended license changes and what they cost
- One-time setup or cleanup work found during the first review
We do not publish numbers because they depend on your user count and license. You receive a written proposal in plain numbers. For help with the licenses themselves, see our IT vendor management services, and for general pricing factors, our managed IT services pricing guide.
Microsoft 365 Security for Chicago Industries
The accounts and information inside Microsoft 365 differ by industry, and so do the consequences of a compromise.
- Law firms keep privileged client communications and documents in mailboxes and shared folders.
- Healthcare practices may handle messages and files that involve patient information. We describe our approach factually and do not promise compliance.
- Financial services firms exchange client instructions and statements by email and in shared files.
- Professional services firms often have staff signing in from several places and sharing files with outside clients.
- Nonprofits often have volunteers, board members and part-time staff who need access without being full employees.
See all sectors we support on our industries page.
Microsoft 365 Security Support Across Chicago and the Suburbs
We support businesses throughout Chicago and the surrounding suburbs, including Skokie, Rosemont, Elk Grove Village, Schaumburg, Oak Brook, Downers Grove, Naperville and Aurora. The full picture across Cook, DuPage, Lake and Will counties is on our Chicagoland service area page.
Frequently Asked Questions About Microsoft 365 Security in Chicago
What is Microsoft 365 MDR?
Is Microsoft 365 secure by default?
What is conditional access in Microsoft 365?
Does multi-factor authentication stop account takeovers?
What Microsoft 365 license do I need for better security?
What should I do if I think a Microsoft 365 account was hacked?
How much do Microsoft 365 security services cost?
How do existing partners report a Microsoft 365 security concern?
See How Your Microsoft 365 Account Is Set Up Today
Tell us which Microsoft 365 license you have and what has worried you: a strange sign-in, a client who got an email you did not send, or simply not knowing what your settings are. We will review your tenant, explain what we find in plain language and tell you what we would and would not change.
Book a Free Microsoft 365 Security Review
Tell us a little about your business and someone from our team will reach out to set up a time. Your information stays private.