Add security page

astro.config.mjs

@@ -136,6 +136,10 @@ export default defineConfig({
           label: 'Status',
           link: '/status',
         },
+        {
+          label: 'Security',
+          link: '/security',
+        },
         {
           label: 'Billing',
           link: '/billing',

src/content/docs/security.md

@@ -0,0 +1,66 @@
+---
+title: Security
+description: Security
+---
+
+Shorebird takes security very seriously. We take several steps to make sure that
+we protect the data you give us, that only you can publish changes to your app,
+and that the patches your users get are the same ones you created.
+
+## Release Artifact Privacy
+
+Your release artifacts (created by `shorebird release`) are hosted privately on
+GCP and are not publicly visible. When they need to be downloaded by you (to run
+`shorebird preview`, for example), we generate a signed URL that requires your
+auth credentials and expires after a short period of time.
+
+## Patch Integrity
+
+The most common security question we get is: How do you verify that the patches
+our users are downloading are the ones that I created and that they haven't been
+tampered with?
+
+We ensure the integrity of patches in several ways.
+
+Over the air:
+
+1. Patches are not full artifacts; rather, they are binary diffs. To create a
+   patch, you need access to the release artifact, which is private.
+2. When a patch is "inflated" (i.e., the binary diff is applied to the base
+   release), we verify that the md5 hash of the _inflated_ patch matches what is
+   in the patch check response.
+
+On device:
+
+1. When the app boots, we ensure that the inflated patch is the same size as it
+   was when it was first inflated. If the size has changed, we will not attempt
+   to boot it.
+2. (Optional) you can opt in to patch signing. This involves including a private
+   key with your release and signing your patches when you create them. If a
+   patch is signed, we verify its signature before attempting to boot from it.
+   This is the highest level of security for patches. Read more about it
+   [here](/guides/patch-signing).
+
+## Data privacy
+
+Shorebird is committed to privacy and provides a high standard of privacy
+protection to all our customers and their customers. We never collect data from
+your customers, and only collect the data necessary from you to provide services
+to you. We take care to protect your data that you entrust with us.
+
+Read our [privacy policy](https:/shorebird.dev/privacy).
+
+## Shorebird on the public cloud
+
+While we do not offer SOC2, ISO 27001 certifications, Shorebird exclusively
+relies on vendors who do. Shorebird explicitly does _not_ build its own servers
+or data storage, relying only on public cloud vendors with rigorous security
+such as CloudFlare and Google Cloud.
+
+## Learn more
+
+Read our [public security policies](https://handbook.shorebird.dev/security).
+
+## Other questions?
+
+Feel free to contact us at [email protected] or reach out to us on Discord.