AI Security: How to Protect Your Data When Working with Neural Networks

Introduction

Neural networks have firmly entered our lives: from generating texts and images to data analysis and business process automation. However, convenience comes with risks. AI security is one of the hottest topics of 2025. Every time you upload a file to ChatGPT, send sensitive data to Midjourney, or use a corporate AI assistant, you potentially expose private information. In this article, we will break down the main threats and provide practical recommendations on how to protect your data when working with neural networks.

Main Risks to Data When Using AI

1. Data Leakage Through Model Training

Many AI services use user data for model fine-tuning. For example, if you upload a confidential document to a free chatbot, its content may become part of the training dataset. As a result, the model may "remember" and reproduce your data to other users.

Example: In 2023, Samsung banned employees from using ChatGPT after engineers uploaded source code and meeting notes to the service.

2. Data Interception During Transmission

Neural networks often operate through cloud APIs. If the connection is not secure (no HTTPS or using public Wi-Fi without a VPN), an attacker can intercept your request and gain access to files, passwords, or personal correspondence.

3. Phishing and Social Engineering Using AI

Attackers use neural networks to create realistic phishing emails and voice messages. For example, AI can mimic your manager's voice to trick you into transferring money to a "secure account."

4. Insufficient Privacy Policies of Platforms

Not all services transparently disclose how they handle data. Some store dialogue logs for years, while others share information with third parties for analytics.

How to Protect Your Data: Practical Tips

1. Use Local Models When Possible

For working with sensitive data (medical records, financial reports, trade secrets), choose open-source models that can be run on your own computer or server. For example, Llama 3, Mistral, or Qwen do not send data to the cloud.

Tip: Install Ollama or LM Studio—these are simple tools for running local neural networks.

2. Carefully Read the Privacy Policy

Before registering for a service, check:
- Do they use data for model training?
- Is there an opt-out option?
- How long are logs stored?

Example: ChatGPT Enterprise does not use client data for training, while the standard version does.

3. Minimize the Amount of Data Uploaded

Do not upload more information to the neural network than necessary. If you need to analyze text, remove personal data (names, addresses, phone numbers) or use pseudonyms.

4. Use Encryption and VPN

When working with cloud AI services through public networks, always enable a VPN. Also, ensure the site uses HTTPS (lock icon in the address bar).

5. Set Up Two-Factor Authentication (2FA)

If the service supports 2FA, activate it. This will protect your account from hacking even if the password is compromised.

6. Regularly Clear History and Logs

Most AI chatbots have a feature to delete dialogue history. Set a reminder to clear logs once a month, especially if you discussed confidential topics.

7. Create a Separate Account for Work Tasks

Do not use a personal account for corporate data. If the service offers enterprise plans (e.g., ChatGPT Enterprise or Google Workspace AI), choose them—they typically have stricter security policies.

What to Do If Data Has Already Leaked?

1. Change passwords on all services where the compromised account was used.
2. Contact platform support—some services can remove your data from training datasets upon request.
3. Check financial