Microsoft 365 Security Assessment & Hardening
Microsoft 365 is where your email, files and identities live — and where most modern attacks begin. Altrixys assesses your tenant against attack techniques we use in real engagements, then hardens it without breaking the way your people work.
What Microsoft 365 security hardening covers
A default Microsoft 365 tenant is configured for convenience, not security. We close the gaps attackers actually use.
Tenant Security Assessment
Full review of your configuration — identity, mail flow, sharing, devices — scored against Microsoft best practice and real attack paths.
Conditional Access & MFA
Phishing-resistant authentication and Conditional Access policies that block legacy protocols, risky sign-ins and impossible travel.
Email Protection
SPF, DKIM and DMARC done right, plus anti-phishing, safe links and attachment policies tuned to stop impersonation and BEC fraud.
Privileged Access Review
Admin role cleanup, break-glass accounts and least-privilege delegation — so one stolen password cannot own the tenant.
Data & Sharing Controls
External sharing, guest access and data loss prevention policies that protect files without blocking collaboration.
Audit & Alerting
Unified audit logging, alert policies and mailbox auditing configured so suspicious activity is seen — not discovered months later.
Hardened against the attacks we perform ourselves
Attack-path driven
We prioritize the misconfigurations that real intrusions exploit — token theft, consent phishing, legacy auth — not theoretical checklists.
No workflow breakage
Policies rolled out in report-only mode first, tuned with your team, then enforced — zero surprise lockouts.
Clear before/after report
A scored report showing exactly what changed, why it matters, and what to maintain going forward.
Frequently asked questions about Microsoft 365 security
What does a Microsoft 365 security assessment check?
We review identity and Conditional Access, MFA coverage, mail flow and anti-phishing, external sharing, privileged roles and audit logging — scored against Microsoft best practice and the attack paths we use in real engagements.
Will hardening Microsoft 365 disrupt our users?
No. Policies are rolled out in report-only mode first, tuned with your team, then enforced — so there are no surprise lockouts.
Do you cover Microsoft Defender and Intune?
Yes, where licensed. We tune Defender policies and can advise on Intune device compliance as part of the engagement.