Key Takeaways
What you need to know
Microsoft 365 Consulting
M365 migrations, SharePoint, Teams, Exchange Online, and Zero Trust identity/security for SMBs.
Key Capabilities
Why Microsoft 365 Security Matters
Microsoft 365 has become the operational backbone for most small and mid-sized businesses. Email, file storage, collaboration, identity management—it all runs through M365. This concentration creates both efficiency and risk. When M365 is compromised, attackers gain access to everything.
The challenge is that Microsoft 365 is not secure by default. Out-of-the-box configurations prioritize ease of use over protection. Features like external sharing, guest access, and legacy authentication are enabled to reduce friction, but they also create attack surfaces that criminals actively exploit.
Business email compromise (BEC) attacks targeting M365 accounts have become one of the most costly forms of cybercrime. Attackers who gain access to a single mailbox can intercept wire transfers, steal sensitive data, and pivot to compromise additional accounts. Proper M365 security configuration is no longer optional—it is essential for any organization that relies on Microsoft's cloud platform.
78% of organizations using M365 have misconfigured security settings exposing sensitive data
Common Microsoft 365 Security Gaps
Through our assessments, we consistently find the same security gaps across organizations of all sizes.
Weak identity protection: Multi-factor authentication is not enforced, or it is enabled but easily bypassed through legacy protocols. Conditional Access policies are missing or misconfigured, allowing access from any device, any location, without additional verification.
Oversharing and data sprawl: SharePoint sites and OneDrive folders are shared externally without expiration dates. Sensitive files are accessible to "anyone with the link." Former employees and contractors retain access long after their engagement ends.
Insufficient email protection: Anti-phishing policies use default settings that miss sophisticated attacks. Safe Links and Safe Attachments are not configured. Email forwarding rules allow data exfiltration without detection.
No audit visibility: Unified audit logging is disabled or retention is too short to support incident investigation. Administrators cannot answer basic questions about who accessed what and when.
These gaps exist not because organizations are negligent, but because M365 is complex and secure configuration requires specialized knowledge.
Properly configured Conditional Access policies block 99.9% of automated attacks
Our Microsoft 365 Security Approach
Cloud Solutions Consulting's M365 security services follow a systematic approach to identify gaps and implement controls without disrupting your business operations.
Configuration Assessment: We evaluate your current M365 tenant against security best practices and compliance requirements. This includes identity and access management, email security, SharePoint and OneDrive sharing settings, Teams configuration, and audit logging. You receive a detailed findings report with prioritized recommendations.
Conditional Access Implementation: We design and deploy Conditional Access policies that enforce MFA, restrict access from unmanaged devices, block legacy authentication, and apply risk-based controls. These policies protect your environment while maintaining usability for legitimate users.
Data Protection Configuration: We configure sensitivity labels, data loss prevention policies, and retention rules appropriate to your compliance requirements. External sharing is restricted to appropriate use cases with proper controls and expiration.
Email Security Hardening: We optimize anti-phishing, Safe Links, Safe Attachments, and anti-spam policies. DMARC, DKIM, and SPF records are configured to prevent domain spoofing. Suspicious forwarding rules are identified and removed.
Ongoing Monitoring Guidance: We help you establish monitoring practices to detect configuration drift and suspicious activity. This includes setting up alerts, reviewing audit logs, and conducting periodic configuration reviews.
Our M365 security assessments typically identify 15-30 immediate hardening opportunities
Microsoft 365 Security for Professional Services Firms
Professional services firms face unique M365 security challenges. CPA firms, law practices, and financial advisors routinely share sensitive client documents through SharePoint and OneDrive. They collaborate with external parties via Teams. They receive and send emails containing confidential financial and legal information.
This creates tension between security and the collaborative workflows these firms depend on. Lock down sharing too aggressively and productivity suffers. Leave it too open and client data is at risk.
Our approach for professional services firms balances these concerns. We implement controls that protect sensitive data while preserving the collaboration capabilities your team needs. This includes configuring guest access with appropriate restrictions, implementing sensitivity labels that travel with documents, and creating sharing policies that allow external collaboration within defined boundaries.
We also help professional services firms meet specific compliance requirements. Whether you need to demonstrate FTC Safeguards compliance, satisfy client security questionnaires, or prepare for SOC 2 examination, we configure M365 to support your compliance objectives and document the controls for auditors.
Beyond Configuration: M365 Security as Ongoing Practice
Securing Microsoft 365 is not a one-time project. Microsoft continuously releases new features and security capabilities. Threat actors continuously develop new attack techniques. Your organization continuously changes—new employees, new projects, new collaboration patterns.
Effective M365 security requires ongoing attention. Configuration drift happens when well-intentioned changes introduce gaps. New features launch with insecure defaults. Employees find workarounds that bypass controls.
Cloud Solutions Consulting offers ongoing M365 security advisory services for organizations that want to maintain their security posture over time. This includes periodic configuration reviews, guidance on new features, assistance responding to security incidents, and support for compliance audits.
Whether you need a one-time assessment to understand your current state or an ongoing partnership to maintain secure configurations, we tailor our engagement to match your needs and internal capabilities. The goal is an M365 environment that enables your business while protecting the data your clients entrust to you.
Business outcomes with Microsoft 365 Consulting
M365 migrations, SharePoint, Teams, Exchange Online, and Zero Trust identity/security for SMBs.
Key Results
- Secure and streamline Microsoft 365 collaboration across your organization
- Reduce data sprawl and oversharing across SharePoint, OneDrive, and Teams
- Improve identity protection and device compliance with Conditional Access
- Increase productivity while maintaining governance and compliance requirements
Challenges We Solve
We understand the unique hurdles different industries face when securing their digital infrastructure.
Creative Agencies
- Client asset theft and IP exposure
- Unsecured contractor access
- Weak email authentication impacting deliverability
- File-sharing risks between clients and creatives
Financial Services
- Increasing regulatory pressure from SEC, FINRA, CFPB, and state agencies
- Rising cyber insurance requirements and premium hikes
- Email-based fraud targeting advisors, lenders, and back-office staff
- Client data exposure risks across cloud apps, devices, and remote users
Nonprofits
- Protect donor data
- Reduce accidental data exposure
- Modernize outdated systems
Professional Services
- Client confidentiality exposure
- Increasing insurance carrier requirements
- Unsecured file sharing with clients
- Remote/hybrid device security gaps
Construction / Trades
- Subcontractor access risks
- Ransomware targeting project files and drawings
- Distributed crews accessing data from the field
- Insurance and bonding requirements increasing
Comprehensive Services
Teams Phone
Modernize your phone system with Microsoft Teams Phone.
Microsoft 365 Migration
Seamlessly migrate your email and files to Microsoft 365.
SharePoint Consulting
Maximize collaboration and document management with SharePoint.
Cyber Insurance Alignment
Cyber insurers increasingly scrutinize Microsoft 365 configurations during underwriting. We help you implement the controls they expect: multi-factor authentication enforced via Conditional Access, external sharing restrictions, email filtering and anti-phishing protections, and comprehensive audit logging. Our M365 security assessments document your configuration in terms underwriters understand.
Alignment with underwriting requirements helps reduce premiums and ensures claim validity.
Verified Controls
Multi-Factor Authentication (MFA)
Stops the most common cause of claims: unauthorized access via password-only credentials.
Explore our other services
Microsoft 365 Consulting works best alongside our other core capabilities.
Industries we serve with Microsoft 365 Consulting
Microsoft 365 Consulting services by location
We provide Microsoft 365 Consulting services to organizations across the United States.
Frequently Asked Questions
Dan Pitre
President & Principal Consultant
Over 25 years of experience in cybersecurity and IT leadership. Specializes in Microsoft 365 security, compliance configurations, and cloud collaboration governance for professional services firms and SMBs.