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 ### [Package Manager Console (PowerShell)](consume-packages/install-use-packages-powershell.md)
 ## Configure NuGet
 ### [Visual Studio options](consume-packages/nuget-visual-studio-options.md)
+### [NuGet HTTPS Everywhere](consume-packages/nuget-https-everywhere.md)
 ### Package restore options
 #### [Restore packages](consume-packages/package-restore.md)
 #### [Troubleshooting](consume-packages/package-restore-troubleshooting.md)
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+---
+title: NuGet HTTPS Everywhere
+description: Learn why NuGet enforces HTTPS connections for package sources, what errors like NU1302 mean, and how to safely allow HTTP feeds when necessary.
+author: Nigusu-Allehu
+ms.author: nyenework
+ms.date: 10/28/2025
+ms.topic: conceptual
+ai-usage: ai-generated
+---
+
+# NuGet HTTPS Everywhere
+
+NuGet requires all package sources to use **HTTPS** instead of **HTTP**.
+This enforcement protects the software supply chain by preventing tampering and interception during package restore and related operations.
+NuGet enforces this requirement by producing an error and stopping the operation when an HTTP source is used.
+
+## Understanding the HTTP Error
+
+This error occurs when one or more package sources in your configuration use an **HTTP** URL instead of **HTTPS**.
+
+In earlier NuGet versions, this scenario produced a **warning** ([`NU1803`](../reference/errors-and-warnings/nu1803.md)).
+Beginning with  [**NuGet 6.12**](../release-notes/NuGet-6.12.md) and later, it now results in an **error** unless the use of HTTP sources is explicitly permitted.
+
+### Recommended Resolution
+
+Before allowing HTTP connections, confirm whether your package source supports HTTPS.
+If it does, update the feed URL to use the secure protocol:
+
+```xml
+<add key="MyFeed" value="https://contoso/packages/v3/index.json" />
+```
+
+Switching to HTTPS ensures end-to-end encryption and is the recommended and more secure approach.
+
+### Allowing Insecure HTTP Feeds (Opt-Out)
+
+If HTTPS is not available and you operate in a trusted or isolated environment, you can explicitly allow HTTP sources.
+
+#### Option 1: Set allowInsecureConnections in your `NuGet.Config`
+
+* **Use Visual Studio**
+
+  Enable or disable allowing insecure HTTP connections with the [Package Sources settings](/nuget/consume-packages/nuget-visual-studio-options#allow-insecure-connections) under the Visual Studio options > **NuGet Package Manager**.
+
+* **Edit `NuGet.Config` manually**
+
+  Add the `allowInsecureConnections="true"` attribute to the affected source:
+
+  ```xml
+  <?xml version="1.0" encoding="utf-8"?>
+  <configuration>
+    <packageSources>
+      <add key="MyHttpFeed" value="http://contoso/packages/v3/index.json" allowInsecureConnections="true" />
+    </packageSources>
+  </configuration>
+  ```
+
+#### Option 2: Use the Command-Line Parameter
+
+For commands that support it, include the following flag to temporarily permit HTTP connections:
+
+For **dotnet** commands:
+
+```bash
+--allow-insecure-connections
+```
+
+For **NuGet.exe** commands, use:
+
+```powershell
+-AllowInsecureConnections
+```
+
+#### Commands that support opt-out options
+
+| Tool           | Commands                  | Support for Allow Insecure Connection |
+| -------------- | ------------------------- | ------------------------------------- |
+| **nuget.exe**  | `push`                    |  NuGet **7.0**                        |
+| **dotnet CLI** | `dotnet nuget push`       | .NET **10.0.1xx** and newer           |
+| **dotnet CLI** | `dotnet nuget add source` | .NET **9.0.1xx** and newer            |
+
+## HTTPS Enforcement Rollout Across Tools
+
+NuGet’s HTTPS enforcement was introduced gradually across releases.
+The following table summarizes the progression from [**warnings (NU1803)**](../reference/errors-and-warnings/nu1803.md) to [**errors (NU1302)**](../reference/errors-and-warnings/nu1302.md).
+
+| Versions Affected                                     | Behavior                                                              |
+| ----------------------------------------------------- | --------------------------------------------------------------------- |
+| [NuGet.exe 6.3](../release-notes/NuGet-6.3.md)+, Visual Studio 17.3+, .NET 6.0.100+   |  ⚠️ **Warning (NU1803)** – HTTP sources allowed but discouraged        |
+| [NuGet.exe 6.12](../release-notes/NuGet-6.12.md)+, Visual Studio 17.12+, .NET 9.0.100+  | ❌ **Error (NU1302)** – HTTP sources blocked unless explicitly allowed|
+
+## See Also
+
+* [NU1302](../reference/errors-and-warnings/nu1302.md)
+* [NU1803](../reference/errors-and-warnings/nu1803.md)
+* [NuGet.Config Reference](../reference/nuget-config-file.md#packagesources)
+* [NuGet Visual Studio Options](../consume-packages/nuget-visual-studio-options.md)