Is it safe to use AI to write emails with sensitive information?
Why sensitive data is risky
When you paste sensitive information into a public AI tool, you're sending it to a third-party server. Many free tools retain that data and may use it to improve their models, which could expose confidential details.
Even if a tool claims to delete data, there's no guarantee it won't be stored temporarily or accessed by employees. For truly sensitive information like passwords, financial details, or personal health data, it's best to avoid AI entirely.
- Passwords or login credentials
- Social Security numbers or tax IDs
- Bank account or credit card numbers
- Medical records or health information
- Confidential business contracts or trade secrets
Safer ways to use AI for emails
You can still use AI to draft emails if you replace sensitive details with placeholders like [NAME] or [ACCOUNT NUMBER]. Then fill in the real information yourself before sending.
For work emails, check if your company provides an approved AI tool with a business associate agreement (BAA) or enterprise privacy policy. These tools typically don't train on your data and offer stronger security.
Common mistakes
- Thinking that deleting your chat history removes your data from the AI provider's servers.
- Assuming all AI tools have the same privacy policy—free versions often have weaker protections than paid or enterprise versions.
- Believing that because a tool is popular, it must be safe for confidential information.
