How Microsoft and EY Are Using AI Legal Tools to Revolutionize Regulatory Compliance
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- Microsoft's legal team partnered with EY Law to build a GenAI compliance tool in just a two-day hackathon, using Microsoft Azure OpenAI and Semantic Kernel.
- EY cut secure AI feature build time by 25–30% by integrating Microsoft Purview SDK early in development — a major win for regulated industries.
- EY Competitive Edge, launched in October 2024, now serves more than 5,000 clients globally, tracking 677 million news articles across 140 countries.
- Despite 75% of companies now using GenAI at work, only 14% of CEOs believe their AI systems fully comply with existing regulations — a dangerous gap this tool aims to close.
What Happened
In a striking example of legal technology meeting real-world need, Microsoft's Corporate, External, and Legal Affairs (CELA) team joined forces with EY Law to tackle one of the most stubborn problems in big business: keeping up with an avalanche of new regulations.
The two organizations didn't spend months in boardrooms planning. Instead, they ran a focused two-day hackathon — essentially a team sprint where engineers, lawyers, and AI specialists work side by side to build something fast. The result was a working proof-of-concept (POC) framework: a GenAI-powered compliance tool built on Microsoft Azure OpenAI and Microsoft Semantic Kernel, a developer toolkit that helps connect AI models to real-world business applications.
What does the tool actually do? It automatically summarizes new regulations as they're published, flags the next steps that legal teams need to take, and even drafts formatted email templates so that compliance updates can be quickly shared with decision-makers across the organization. Instead of a lawyer spending days reading dense regulatory documents, the AI legal tool does the heavy lifting — surfacing what matters most, so humans can focus on the judgment calls only they can make.
This isn't an isolated experiment. In October 2024, EY and Microsoft expanded their broader strategic alliance with the launch of EY Competitive Edge — a GenAI intelligence cloud platform that tracks 26 million company profiles, 2.1 million transactions, more than 325,000 company reports, and monitors 677 million news articles across 140 countries. It's legal software and business intelligence fused together at a scale that would have been unthinkable just a few years ago.
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Why It Matters for You
You might be wondering: this sounds like big-company news — what does it have to do with me? The answer is more direct than you'd expect, because the forces that pushed Microsoft and EY to build this tool are the same ones quietly reshaping every industry that touches the law.
Think of regulatory compliance like doing your taxes, but instead of one set of rules, you're dealing with dozens of overlapping tax codes that change every few months, are written in different languages, and vary by country. That's the reality for large companies operating globally. The EU AI Act, SEC disclosure requirements, and constantly evolving data privacy laws like GDPR have created a maze that even well-funded legal teams struggle to navigate. Law firm automation tools like the one Microsoft and EY built are a direct response to this pressure.
Here's why the numbers matter: EY's own 2024 survey found that GenAI workplace adoption exploded from just 22% in 2023 to 75% in 2024. In just one year, AI went from a curiosity to a standard workplace tool. But there's a serious problem hiding inside that statistic — only 14% of CEOs believe their AI systems are operating in full adherence to existing regulations. That means roughly 86% of companies using AI may be exposed to compliance risks they haven't fully addressed.
This is where legal technology like the EY-Microsoft tool becomes critical — not just for Fortune 500 companies, but as a model for how any organization, large or small, should think about AI governance. The approach of embedding compliance checks directly into the AI development pipeline (rather than bolting them on afterward) is a lesson the entire industry is beginning to learn.
EY demonstrated this firsthand: by adopting Microsoft Purview SDK (a security and compliance management toolkit) early in its build process, EY cut the time needed to securely launch new AI features by 25–30%. That's not just efficiency — in regulated industries like finance, healthcare, and law, faster secure deployment means fewer windows of exposure to legal risk.
For everyday people, the ripple effects are real. When the law firms and corporate legal departments that handle everything from employment contracts to consumer protection cases become more efficient through AI legal tools, legal services can become faster and — over time — potentially more accessible. Contract review, which has historically required expensive attorney hours, is one area where legal software is already beginning to democratize access.
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The AI Angle
The technology stack behind this compliance breakthrough is worth understanding, because it represents where legal technology is heading broadly. Microsoft Azure OpenAI provides the large language model (LLM) foundation — the same family of AI that powers ChatGPT, but deployed within Microsoft's enterprise cloud with strict data privacy controls. Microsoft Semantic Kernel acts as the connective tissue, allowing the AI model to interact with existing legal databases, document systems, and workflow tools.
What makes this particularly noteworthy for the AI legal tools space is the speed of prototyping. A viable proof-of-concept emerging from a two-day hackathon signals that the barriers to building useful legal software with AI have dropped dramatically. EY's early access to emerging Microsoft Azure AI capabilities under their alliance agreement enabled rapid multidisciplinary prototyping — combining AI policy expertise, legal operations, data strategy, and privacy engineering in a way that would have required much longer timelines just two years ago.
EY Competitive Edge, now used by more than 5,000 EY clients globally, is powered by Microsoft Azure OpenAI, AI Search, and Azure Cosmos DB — a combination that enables real-time monitoring of regulatory and market developments at a scale no human team could match. This is law firm automation operating at enterprise scale.
What Should You Do? 3 Action Steps
Whether you're a solo entrepreneur, a small business owner, or part of a larger legal or compliance team, the first step is understanding your current process. Are you relying on manual email alerts? Periodic lawyer check-ins? If regulatory changes in your industry could affect your contracts, data handling, or operations, map out where those updates come from and how quickly your team acts on them. Legal technology tools — even lighter-weight versions of what EY and Microsoft built — are increasingly available for small and mid-sized organizations through platforms like Thomson Reuters, LexisNexis, and emerging AI legal tools startups.
The EY data is sobering: 75% of workplaces use GenAI, but only 14% of CEOs are confident their AI is fully compliant. If your organization is using any AI tools — whether for contract review, customer communication, or internal research — now is the time to ask hard questions about how those tools handle data, what regulations apply to your industry, and whether your current legal software vendor has addressed compliance in their build pipeline. You don't need a two-day hackathon with Microsoft to take a first step; you need a conversation with your legal counsel or compliance officer about your current AI exposure.
One of the clearest lessons from EY's experience is the value of integrating security and compliance tools (like Microsoft Purview SDK) at the start of any AI development or deployment project — not as an afterthought. EY cut secure feature build time by 25–30% with this approach. If your business is building, buying, or deploying any legal technology or AI legal tools, push your vendors to show you where compliance controls live in their development process. Responsible AI governance built in from the start is dramatically more effective — and less costly — than remediation after the fact.
Frequently Asked Questions
How is GenAI being used in regulatory compliance for large law firms and enterprise legal teams in 2026?
GenAI is being used to automate some of the most time-consuming parts of regulatory compliance work — specifically, reading and summarizing new laws and regulations, identifying which parts of an organization are affected, and generating internal communications to distribute that information quickly. Microsoft's CELA team and EY Law built a tool that does exactly this using Microsoft Azure OpenAI and Semantic Kernel. Rather than replacing lawyers, these AI legal tools free up legal professionals to focus on higher-judgment work like strategic advice and risk assessment, while the software handles the initial information processing.
Is AI-powered contract review and legal software actually reliable enough to trust in 2026?
AI legal tools for contract review have matured significantly, but reliability depends on the specific tool, how it was trained, and how human oversight is built into the workflow. Enterprise platforms built on vetted models like Azure OpenAI — and deployed with compliance controls like Microsoft Purview — offer substantially stronger reliability guarantees than generic consumer AI tools. The EY-Microsoft collaboration demonstrates best practice: using AI to surface information and draft outputs, while keeping trained legal professionals in the decision loop. No AI legal tool should be used as a substitute for qualified legal counsel on high-stakes matters.
What is the EY Competitive Edge platform and how does it help with global regulatory monitoring?
EY Competitive Edge is a GenAI intelligence cloud platform launched in October 2024 through EY's strategic alliance with Microsoft. It monitors 677 million news articles across 140 countries and tracks 26 million company profiles, 2.1 million transactions, and more than 325,000 company reports. It's powered by Microsoft Azure OpenAI, AI Search, and Azure Cosmos DB, and is already used by more than 5,000 EY clients globally. For organizations operating across multiple jurisdictions, it functions as an always-on regulatory radar — surfacing relevant developments far faster than any human monitoring team could manage.
How can small businesses benefit from enterprise legal technology trends like the Microsoft and EY AI compliance tool?
While small businesses won't be deploying enterprise-grade platforms like EY's tool overnight, these developments set the direction for where mainstream legal software is heading. The underlying AI models (like those from Azure OpenAI) are increasingly available through affordable SaaS (software-as-a-service) products built for smaller organizations. In the near term, small business owners can benefit by choosing legal software vendors who are actively integrating AI-powered compliance features, by staying informed about regulatory changes in their sector through AI-assisted news monitoring tools, and by ensuring any AI tools they already use are compliant with data privacy laws relevant to their industry.
What are the biggest risks of using AI legal tools for compliance without proper governance in place?
The biggest risk is the compliance gap highlighted in EY's own 2024 research: 75% of companies now use GenAI in the workplace, but only 14% of CEOs believe their AI systems fully comply with existing regulations. Without proper governance, organizations risk using AI tools that mishandle sensitive legal data, produce outputs that don't meet regulatory standards, or create liability when AI-generated legal documents or compliance summaries contain errors. Law firm automation without human oversight is particularly risky in fast-changing regulatory environments like AI governance (EU AI Act) or financial disclosure (SEC rules). The EY approach — integrating compliance tools early in the development pipeline and maintaining trained legal oversight — is the model to follow.
Disclaimer: This article is for informational purposes only and does not constitute legal advice. Always consult a qualified attorney for guidance specific to your situation.
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