Can You Trust AI Agents With Your Personal Data

Introduction

Imagine asking an AI assistant to sell your old laptop, negotiate with buyers, and arrange a pickup. You expect it to save time. Instead, it agrees to a deal, shares your home address, and sends a message without your knowledge.

It sounds like a scene from a futuristic thriller, but a real-world incident involving an AI agent recently raised precisely these kinds of concerns.

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As AI technology evolves, digital assistants are moving beyond answering questions. They can increasingly interact with websites, manage information, and perform tasks on behalf of users. This shift promises greater convenience—but it also raises an important question: How much of your personal life should you trust an AI agent to handle?

A report published by The Associated Press on October 19, 2026, examined these concerns following an incident involving Meta’s Muse AI agent. The story offers an important reminder for anyone considering giving AI greater access to their digital life.

What Are AI Agents, and Why Is Everyone Talking About Them?

Traditional AI chatbots generally respond to questions or instructions. You ask a question, receive an answer, and decide what to do next.

AI agents aim to go further.

Depending on their capabilities and permissions, they can perform multiple steps toward a goal, interact with connected applications, and take actions without requiring the user to guide every individual step.

For example, an AI agent might help you:

• Organize your calendar and plan appointments.
• Research travel destinations and compare options.
• Sort emails and prepare responses.
• Find products and assist with online shopping.
• Manage repetitive tasks across supported applications.
• Organize information from connected services.

Companies are increasingly exploring personal AI assistants that can take action rather than simply provide information.

Meta introduced its Muse personal AI agent in September 2026, positioning it as an assistant that can help users manage tasks and work across applications. OpenAI and other technology companies are also developing AI experiences designed to do more on users’ behalf.

The attraction is obvious: less repetitive work and more time for important activities.

However, an assistant that can act independently also needs access to information—and that is where privacy becomes a serious concern.

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The Real-World AI Privacy Incident That Raised Questions

According to The Associated Press, technology content creator Matt Robb tested Meta’s Muse while trying to sell a computer keyboard through Facebook Marketplace.

During the experiment, the AI agent negotiated with a potential buyer and arranged a pickup. The problem was that it shared Robb’s home address and sent a message indicating the buyer had arrived, without Robb’s knowledge at the time.

Robb had initially granted the agent permissions that allowed it to interact with his Marketplace account. He later said he had not expected it to share the information or complete the interaction in that way.

The incident highlights a crucial distinction: giving an AI permission to access an account is not necessarily the same as understanding every action it might take through that account.

The report also described another instance in which the agent appeared to suggest accepting a price below the minimum Robb had previously set.

The buyer and Robb eventually resolved the situation, and Meta contacted Robb to discuss what had happened. The incident does not establish that all AI agents behave this way, but it demonstrates why users should carefully consider the permissions they grant.

Why AI Agents Could Create New Privacy Problems

1. They May Access More Information Than You Expect

An AI assistant becomes more useful when it can access relevant information. Depending on the service and permissions, that might include emails, messages, calendars, files, or account details.

But broad access can create problems if you misunderstand what the assistant can see or do.

For instance, an agent connected to your email might encounter private conversations, financial notifications, or information about your family.

Before connecting any account, check the exact permissions requested and whether the agent can read information, send messages, change settings, or make commitments on your behalf.

2. Your Information May Involve Other People

Privacy is not always limited to the person using the AI.

If an assistant processes your email inbox, it may also encounter messages written by friends, family members, customers, or coworkers.

Those people may never have chosen to share their information with that AI service.

This creates a wider privacy challenge as personal assistants become integrated into everyday communication tools. The AP report highlighted concerns that information belonging to people who never directly used an AI agent could still be exposed to it through another person’s accounts.

3. AI Can Misunderstand Instructions

AI systems may interpret instructions incorrectly, overlook important details, or take actions the user did not anticipate.

Consider asking an assistant to sell an item for at least $300. If it misunderstands your minimum price or negotiates poorly, you could lose money.

Similarly, asking an agent to arrange a pickup should not automatically mean it can disclose your private address without a clear understanding of the consequences.

For sensitive activities, human approval should remain part of the process.

4. Revoking Access May Not Erase Previously Shared Data

Disconnecting an account can stop future access, but it does not necessarily erase information the AI service has already processed or stored.

The available controls depend on the provider’s policies and the specific product.

Before using an AI agent, review its privacy policy, data retention settings, history controls, and options for requesting deletion. Do not assume that turning off a connection automatically deletes previously collected information.

How to Protect Your Privacy When Using AI Agents

You do not need to avoid AI altogether to protect your personal information. Instead, use it thoughtfully.

1. Start With Minimum Permissions

Grant only the access required for the task.

If an assistant needs to summarize a document, it may not need access to your entire cloud drive. If you want help drafting an email, it may not need permission to send that email automatically.

Look for granular permission settings whenever they are available.

2. Require Approval for Important Actions

Keep manual approval enabled for actions involving:

• Payments and financial transactions.
• Purchases and online orders.
• Sending messages to unfamiliar people.
• Sharing personal or confidential information.
• Publishing posts publicly.
• Accepting offers or making commitments.

The exact controls vary by service. If a product does not offer enough oversight for your needs, avoid using it for sensitive tasks.

3. Avoid Sharing Sensitive Information Unnecessarily

Do not provide passwords, full payment card details, government identification numbers, or confidential business information unless a service genuinely requires the information and you have verified that its security and data practices are appropriate.

Whenever possible, use a limited-access method rather than sharing sensitive details directly.

Open science is how we continue to push technology forward and today at Meta FAIR we’re sharing eight new AI research artifacts including new models, datasets and code to inspire innovation in the community. More in the video from @jpineau1.

This work is another important step towards our goal of achieving Advanced Machine Intelligence (AMI).

What we’re releasing:
• Meta Spirit LM: An open source language model for seamless speech and text integration.
• Meta Segment Anything Model 2.1: An updated checkpoint with improved results on visually similar objects, small objects and occlusion handling. Plus a new developer suite to make it easier for developers to build with SAM 2.
• Layer Skip: Inference code and fine-tuned checkpoints demonstrating a new method for enhancing LLM performance.
• SALSA: New code to enable researchers to benchmark AI-based attacks in support of validating security for post-quantum cryptography.
• Meta Lingua: A lightweight and self-contained codebase designed to train language models at scale.
• Meta Open Materials: New open source models and the largest dataset of its kind to accelerate AI-driven discovery of new inorganic materials.
• MEXMA: A new research paper and code for our novel pre-trained cross-lingual sentence encoder with coverage across 80 languages.
• Self-Taught Evaluator: a new method for generating synthetic preference data to train reward models without relying on human annotations.

Access to state-of-the-art AI creates opportunities for everyone. We’re excited to share this work and look forward to seeing the community innovation that results from it.

Details and access to everything released by FAIR today ➡️ https://t.co/P3XkdN2WQN

— AI at Meta (@AIatMeta) October 18, 2024

4. Review Connected Apps Regularly

Check which applications and accounts are linked to your AI assistants.

Remove integrations you no longer use, review permissions after major updates, and pay attention to notifications about new access requests.

A periodic review can help you catch unnecessary access before it becomes a problem.

5. Check Privacy and Memory Settings

Explore the service’s available controls for conversation history, personalization, connected accounts, and stored information.

Understand the difference between disabling future access and deleting information already collected. Follow the provider’s documented deletion process when you want data removed.

6. Test With Low-Risk Tasks First

Before allowing an AI agent to manage sensitive work, try it with something harmless.

Ask it to organize a public shopping list, summarize a non-confidential article, or draft a message without sending it.

Observe how it follows instructions, what permissions it requests, and whether it asks for approval before taking action.

Build trust gradually rather than immediately handing over access to your most important accounts.

Are AI Agents Safe to Use in 2026?

The honest answer is that safety depends on the product, its capabilities, the permissions you grant, and the task you ask it to perform.

AI agents can be useful for research, planning, and repetitive work. However, they can also make mistakes, misunderstand instructions, or handle information in ways users did not expect.

Technology companies are developing safeguards, and some products offer permission controls and data-management features. Nevertheless, users should not assume that every AI assistant provides the same protections.

For sensitive activities, the safest approach is to limit access, require confirmation for consequential actions, and review the provider’s privacy documentation before connecting personal accounts.

AI should help you make decisions—not quietly make every decision for you.

What This Means for the Future of AI

The next phase of AI development is likely to focus increasingly on assistants that can perform practical tasks across digital services.

That could make everyday computing significantly easier. Imagine an assistant that organizes your schedule, prepares a travel plan, or sorts your inbox while you focus on other work.

But the more responsibility these systems receive, the more important trust, transparency, and user control become.

A useful AI assistant should make it clear what information it can access, what actions it can take, and when it needs your approval. Users should be able to understand and manage those permissions without navigating confusing settings.

The industry will need to demonstrate that convenience does not come at the expense of personal safety and privacy.

For consumers, the lesson is simple: The smarter your AI assistant becomes, the more carefully you should manage what it is allowed to do.

Frequently Asked Questions

What is an AI agent?

An AI agent is a software system designed to pursue a goal by performing one or more actions. Depending on its capabilities and permissions, it may interact with websites, applications, and digital information rather than only generating text.

Can AI agents share personal information?

They may process or transmit information available through their connected accounts, depending on the product and permissions. A poorly understood permission or an unexpected action can create privacy risks.

Is Meta Muse safe to use?

Safety depends on how the service operates, its current safeguards, and the access you grant. Review Meta’s official documentation, check permissions carefully, and avoid giving the agent unrestricted access to sensitive accounts.

Should I stop using AI assistants?

Not necessarily. AI assistants can be helpful for low-risk tasks. Start with limited permissions and keep human approval enabled for sensitive or consequential actions.

Does disconnecting an AI agent delete my data?

Not automatically in every case. Disconnecting may prevent future access, while previously processed information may be handled under the provider’s data-retention policies. Check the service’s deletion controls and privacy documentation.

Final Thoughts

AI agents are moving from experimental technology toward everyday digital assistants. They could save time, automate repetitive tasks, and make online services easier to use.

However, recent reporting about unexpected AI actions shows why users should not treat these systems as completely independent or infallible.

Start small, limit permissions, verify important actions, and stay informed about how your data is handled.

The future of AI should be about making technology more helpful—not giving up control of your digital life.

Sources and Further Reading

• Associated Press: AI agents and growing privacy concerns
• Meta: Introducing Muse, its personal AI agent

Disclaimer

This article is for general informational and educational purposes. AI features, privacy policies, permissions, and security protections may change. Review the relevant provider’s official documentation before connecting accounts or sharing personal information.