Microsoft 365 Security Review Findings

Introduction

For many financial institutions, a Microsoft 365 security review is one of the first real looks under the hood of their cloud environment. On paper, everything may seem fine. Users can access email, files are shared, and day-to-day operations run without issue. But when a formal review is performed, the results can feel overwhelming.

It is not uncommon for organizations to see a long list of “Not Implemented” controls the first time around. That can be discouraging at first glance. In reality, this is exactly where most organizations start, and it is not a sign of failure. It is a starting point. At TraceSecurity, we see this pattern consistently across financial institutions. The key is not how many gaps exist initially, but how those findings are used moving forward.

What is a Microsoft 365 Security Review?

A Microsoft 365 security review evaluates how well an organization has configured its tenant to align with security best practices. This includes areas like identity protection, email security, data protection, and system monitoring. For first-time reviews, most environments are still running with a mix of default settings and partially configured controls.

Multi-factor authentication may not be fully enforced across all users. Email protections such as Safe Links or Safe Attachments may not be fully configured. Data protection tools like DLP or sensitivity labels are often not fully in place. Logging and monitoring can be limited, and in some cases, legacy authentication is still enabled. None of this is unusual. In fact, it is expected.

Many organizations assume that because they are using Microsoft 365, they are automatically operating in a secure environment. The reality is different. Microsoft provides a powerful platform with a wide range of security capabilities, but many of those features are not fully enabled by default. Out-of-the-box configurations are designed to prioritize usability and accessibility, not strict security. Microsoft 365 is also a complex ecosystem.

There are many settings, policies, and integrations that all play a role in securing the environment. Without dedicated time and expertise, it is easy for important controls to go unconfigured. When you combine that complexity with limited internal resources, competing priorities, and constantly evolving threats, it becomes clear why gaps are so common during an initial review.

While every organization is different, certain patterns show up consistently. Identity and access management is often one of the biggest areas for improvement. Multi-factor authentication may be enabled for some users, but not all, or policies may not be enforced consistently. Password policies can also be weaker than recommended. Email and phishing protection is another common gap.

Advanced protections are sometimes left in default states or not configured to provide maximum protection. Data protection tools are frequently underutilized, leaving sensitive information without clear controls on how it is shared or accessed. Logging and monitoring may not provide enough visibility to detect suspicious activity. Device and application controls, such as Conditional Access policies, are often missing or incomplete.

The Microsoft 365 Findings

Seeing a long list of findings can feel like a setback, but it is more useful to think of it as a roadmap. A first-time Microsoft 365 review gives organizations something they did not have before, which is a clear and structured view of their current security posture. Instead of focusing on how many controls are missing, it is more productive to focus on where to begin.

Each finding represents an opportunity to improve. Organizations can start by addressing higher risk areas and building a foundation with core controls like multi-factor authentication and Conditional Access. From there, improvements can be made over time in a way that is realistic and sustainable. What initially feels overwhelming becomes a series of manageable steps. It is also important to recognize that not every control needs to be implemented immediately, and in some cases, not at all.

Some controls may not align with how an organization operates. Certain restrictions might interfere with business processes or create unnecessary friction for users. In those situations, organizations may make a deliberate decision to accept a level of risk. That is a normal part of managing security.

A Microsoft 365 review is not about achieving a perfect score. Reaching full implementation across every control is often not realistic. The goal is to make informed decisions that improve security while still supporting the business. Progress matters more than perfection. Microsoft 365 is not a static environment. New features are introduced regularly, recommendations evolve, and threat actors continue to adapt.

Because of this, a one-time review is not enough. Conducting a Microsoft 365 security review on a regular basis allows organizations to measure progress, identify new gaps, and confirm that existing controls are still effective. Over time, this creates a clear trajectory. The first review establishes a baseline. Each review after that shows how much progress has been made. In most cases, organizations will see fewer gaps and a stronger overall security posture as they continue this process.

Conclusion

For financial institutions, the takeaway is simple. If your first Microsoft 365 review uncovers a large number of gaps, you are not behind. You are at the beginning of a structured security journey. Start with the fundamentals, build momentum, and use each review as a checkpoint rather than a judgment.

At TraceSecurity, we work with organizations to not only identify these gaps but also to provide clear and actionable guidance on how to address them over time. The goal is not to overwhelm, but to create steady and measurable improvement. The shift from default to defined does not happen overnight. It starts with visibility, grows through consistent effort, and strengthens with each iteration. A first-time Microsoft 365 review is simply the first step in that process, and for organizations willing to take that step, it is one of the most valuable investments they can make.