
Postman recently sparked privacy concerns by silently enabling AI features that attempt to share API data. Here is what you need to know and how to stay safe.
As developers and business owners, we rely heavily on tools that streamline our workflow. For years, Postman has been the go-to workspace for designing, testing, and sharing APIs. Whether I am building a robust backend with NestJS or integrating third-party services for clients worldwide, Postman usually sits right there in my dock.
Recently, however, the developer community raised urgent alarms over privacy practices related to AI features in Postman. Reports showed that updates quietly enabled settings that attempted to sync API data for AI training or processing without clear, upfront consent. For teams handling sensitive client data, enterprise secrets, or regulated information, this news hits hard.
Today, I want to break down what happened, why it matters for your tech stack, and what steps you should take right now to protect your sensitive API collections.
Software tools are rushing to add artificial intelligence to every button and text box. While AI features like smart debugging or automated documentation sound great on paper, implementation matters.
In this case, recent updates introduced AI capabilities that automatically interacted with user workspaces. Many developers discovered that features were opted-in by default, sending telemetry or API schemas to external cloud models. When you work with proprietary endpoints, authorization tokens, environment variables, and payload examples containing real database fields, unexpected data sharing is a massive red flag.
Even if a company has good intentions around data handling, automatic cloud syncing of API collections breaks the fundamental rule of least privilege and strict data governance.
When building custom software, web apps, or mobile applications, security is not an afterthought—it is the foundation. If you are a freelance developer or run an agency, your clients trust you with their intellectual property.
Consider what typically lives inside a Postman collection:
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If these collections are silently read or processed by third-party AI models, you risk leaking credentials or violating strict non-disclosure agreements (NDAs) and privacy regulations like GDPR. For businesses, a single leaked API key can lead to unauthorized database access, data breaches, and expensive infrastructure bills.
We cannot stop the wave of AI integration, but we can control our local environments and workspaces. Here is a practical checklist you should follow right now to ensure your API data remains secure.
Open your API client and navigate to the settings or preferences panel. Look specifically for any sections labeled AI, Cloud Syncing, Assistant, or Data Sharing.
Toggle off any options that allow the application to use your local collections for training, improvement, or automated cloud analysis. If your organization has enterprise controls, ensure your workspace administrators enforce these policies globally.
Never store raw production secrets in shared or cloud-synced environment files if you can avoid it. Use placeholder values for sensitive headers:
{
"authorization": "Bearer YOUR_PRODUCTION_SECRET_HERE",
"x-api-key": "placeholder_key"
}
When sharing collections with team members or clients, double-check that no real credentials are hardcoded into request bodies or query parameters.
If you find that cloud-first software is moving too fast with automatic data collection, consider switching to lightweight, offline-first, or open-source alternatives. Tools like Bruno store your API collections directly as plain text files in a local folder, making it easy to track changes with Git while keeping your data entirely under your control.
When I built offline-first utilities like my Nept Track offline habit tracker, keeping local data strictly on the device was a top priority. The same philosophy applies to our developer tools.
Convenience should never compromise security. While AI tools can speed up development, we must remain vigilant about where our code, payloads, and credentials go. Take ten minutes today to review your toolchain settings, lock down your workspaces, and ensure your client data stays safe.
Have you checked your API client settings yet? Let's build secure, privacy-first software together. If you need help auditing your backend architecture or building secure APIs, get in touch.