Artificial intelligence tools such as ChatGPT, Claude, and Microsoft Copilot are quickly becoming essential for everyday business use. They help employees write reports, summarize meetings, analyze spreadsheets, and even draft emails. Many accounting and professional services firms now use AI daily to save time and boost productivity.

However, there is an important issue that often gets overlooked: privacy. Everything you type, paste, or upload into an AI system can be stored, reviewed, or even used to train future models, depending on how your settings are configured. That means sensitive data, client details, or internal files could accidentally end up outside your control.

This week’s Tech Tip Tuesday explains how to keep your data safe, manage privacy settings, and get the best results from your AI tools without risking confidentiality.

1. Personalize Without Oversharing

AI tools respond better when they understand your context, such as the industry you work in or your preferred tone. But there is a big difference between sharing helpful background and sharing too much information. Personalization should always stop short of exposing any confidential or identifying details.

For example, you can tell ChatGPT you are an accountant who prefers concise and professional responses, but you should never paste client names, financial data, or any private correspondence into the chat window.

How to personalize safely:

• ChatGPT:
• Click your name or profile icon in the bottom left corner. Select Settings, then open Personalization → Custom Instructions. Add general details like your role or communication style, not sensitive information.
• Claude:
• Click your name in the bottom left corner, then choose Settings & Privacy. Claude does not retain memory between sessions, so any context you provide disappears when you close the chat. You can safely add short prompts such as “I am preparing a memo for clients in the accounting industry.”
• Copilot:
• In Microsoft 365, open the Admin Center, go to Privacy & Security, and review Data Access for Copilot. Confirm that Copilot can only see files relevant to business use, not personal or shared folders.

Context helps accuracy, but oversharing creates unnecessary exposure. Treat every AI input as if it could one day be seen by someone outside your organization.

2. Review Privacy Settings Regularly

Every AI platform handles user data differently, and privacy settings often change over time as new features roll out. Taking five minutes each month to review your privacy settings can make a big difference in controlling what happens to your data.

How to review:

• ChatGPT:
• Click your name or profile icon, open Settings, then select Data Controls. Turn off Improve the model for everyone. This stops OpenAI from using your conversations to train its models. You can also clear your chat history at any time.
• Claude:
• Go to Settings & Privacy → Data Control and clear your chat history for added safety. Anthropic’s privacy policy states that Claude does not use user data for training, but manually clearing history adds peace of mind.
• Copilot:
• In Microsoft 365 Admin Center, review Copilot permissions and confirm access only to approved files and data locations. Use Sensitivity Labels in SharePoint, Teams, and OneDrive to protect confidential or regulated information.

Policies evolve, and even small setting changes can have big implications for data retention. Assign one person in your office to perform a quick privacy review each month.

3. Manage Memory and Chat History

Many AI systems now include “memory” features to remember information from previous sessions. While this can make them more helpful, it also means the tool is storing details about you, your work, or your clients. It is critical to monitor what these systems remember.

How to manage it:

• ChatGPT:
• Open Settings → Personalization → Manage Memory. Review what ChatGPT remembers about you and delete anything outdated or sensitive. You can also disable memory completely if you prefer every chat to start clean.
• Claude:
• Claude does not have long-term memory. Every session begins from scratch, which makes it a safer choice for handling confidential or client-related tasks.
• Copilot:
• Copilot draws information from your Microsoft 365 environment, including Outlook, Teams, and OneDrive. Ensure it is only connected to business-appropriate channels or folders. Remove access to locations that contain personal or restricted files.

Think of AI memory like a notebook. It can help you stay organized, but it should be reviewed and cleared regularly to avoid unwanted retention.

4. Use the Right AI for the Right Job

Each AI platform has different strengths, and some are more appropriate for sensitive work than others. Matching the tool to the task helps balance efficiency and security.

• ChatGPT:
• GPT-4 remains excellent for day-to-day tasks such as writing, summarizing, and brainstorming. GPT-5 Pro, released in 2025, provides stronger reasoning abilities and improved control over data storage.
• Claude:
• Claude 3 Sonnet is designed for quick, clear responses. Claude 3 Opus delivers deeper analysis with a stronger privacy posture, making it a reliable choice for firms handling regulated data.
• Copilot:
• Microsoft Copilot is built directly into Microsoft 365, which makes it ideal for producing reports, summarizing meetings, and analyzing spreadsheets. However, it operates within your organization’s data ecosystem, so privacy depends on your internal permissions and security labels.

If you handle sensitive or regulated information, always use business or enterprise accounts. Personal AI accounts often lack the controls and encryption your firm requires.

5. Treat AI Chats Like Public Spaces

Even with good security, AI platforms are not private journals. Always assume that what you share could eventually be visible to others. This mindset encourages safe habits and prevents accidental exposure.

Before you enter information, ask yourself:

Would I be comfortable if this text appeared online?

Best practices:

• Never paste proprietary, financial, or client information into a chat.
• Use company-managed accounts for all AI use. Avoid free or personal logins for business purposes.
• If your firm does not already have an internal AI policy, create one that defines what can and cannot be shared.
• Train staff regularly on AI privacy to ensure consistent practices across your team.

Preventing a data leak is far easier than responding to one after it happens.

The Bottom Line

AI tools like ChatGPT, Claude, and Microsoft Copilot can save significant time and make your work more efficient. They help streamline communication, automate routine tasks, and boost productivity across teams.

However, these benefits come with responsibility. The privacy and performance of each tool depend entirely on how you use them and how you configure their settings. It is also important to understand that both free and paid versions of these tools exist, and they handle data differently.

• Free versions often have limited privacy controls and may use your conversations to improve public models.
• Paid or enterprise versions typically offer enhanced data protection, private environments, and stronger compliance options for businesses.

If your work involves confidential or client data, always choose a paid or enterprise plan that clearly states how your information is stored and protected.

Take a few minutes this week to:

1. Review privacy, memory, and data settings in each AI platform.
2. Clear old chats or stored memory where possible.
3. Confirm that Copilot and other AI assistants only access business-appropriate data.
4. Communicate clear AI-use guidelines to your staff.

Once data enters an AI system, it may be stored, analyzed, or shared in ways you cannot fully control. Understanding which version you are using—and how it manages data—is key to preventing accidental exposure. A few small precautions today can protect your business from major security issues later.

Coming Next Week

Microsoft Copilot Deep Dive – Learn how Copilot connects with Microsoft 365, what information it uses, and how to configure it for maximum security and productivity within your organization.