diff --git a/docs/architecture/embedded-inline-playback.md b/docs/architecture/embedded-inline-playback.md
index 523360795..3900dd612 100644
--- a/docs/architecture/embedded-inline-playback.md
+++ b/docs/architecture/embedded-inline-playback.md
@@ -353,7 +353,8 @@ neither retained nor rendered. Technical details show only the sanitized stage,
 failure, engine type/details, disposition, and HTTP status. The active playback
 URL remains available to the pre-existing retry, copy, and explicit
 external-player workflows; it is not copied from the HLS error payload into
-the evidence or technical details.
+the evidence or technical details. HLS startup development logs are event-only:
+they do not include provider-supplied channel names or source URLs.
 
 `network-error` is reserved for provider/network loading failures. Engines that expose concrete browser security evidence, such as CORS, mixed content, Content Security Policy, or private-network-access blocks, use `browser-access-error` so the UI can explain that the browser player was blocked before playback reached decoding.
 
diff --git a/docs/superpowers/specs/2026-07-30-structured-hls-diagnostics-design.md b/docs/superpowers/specs/2026-07-30-structured-hls-diagnostics-design.md
index bea4b0c9d..d32ce1966 100644
--- a/docs/superpowers/specs/2026-07-30-structured-hls-diagnostics-design.md
+++ b/docs/superpowers/specs/2026-07-30-structured-hls-diagnostics-design.md
@@ -175,8 +175,10 @@ summary made only from the evidence fields, for example:
 `stage=manifest · failure=http · type=networkError · details=manifestLoadError · disposition=fatal · HTTP 404`
 
 No HLS error message, URL, header, body, response text, or arbitrary provider
-payload appears. Existing title/description and HTTP metadata rendering remain
-unchanged, so no new translation keys or layout changes are required.
+payload appears. HLS startup development logs are event-only and omit
+provider-supplied channel names and source URLs. Existing title/description and
+HTTP metadata rendering remain unchanged, so no new translation keys or layout
+changes are required.
 
 ## Testing
 
diff --git a/libs/ui/playback/src/lib/html-video-player/html-video-player.component.shared-controls.sources.spec.ts b/libs/ui/playback/src/lib/html-video-player/html-video-player.component.shared-controls.sources.spec.ts
index 1c82ec2b4..929772534 100644
--- a/libs/ui/playback/src/lib/html-video-player/html-video-player.component.shared-controls.sources.spec.ts
+++ b/libs/ui/playback/src/lib/html-video-player/html-video-player.component.shared-controls.sources.spec.ts
@@ -72,6 +72,27 @@ describe('HtmlVideoPlayerComponent shared controls sources', () => {
         expect(bindIndex).toBeLessThan(loadIndex);
     });
 
+    it('does not write HLS provider data to development logs', () => {
+        const secret = 'hls-dev-log-secret';
+        const debug = jest
+            .spyOn(console, 'debug')
+            .mockImplementation(() => undefined);
+        jest.replaceProperty(process.env, 'NODE_ENV', 'development');
+
+        renderSharedControls(HtmlVideoPlayerComponent, fixtures, {
+            channel: {
+                ...TEST_CHANNEL,
+                name: `Provider channel ${secret}`,
+                url: `https://user:${secret}@provider.example/live.m3u8?token=${secret}`,
+                epgParams: `&epg-token=${secret}`,
+            },
+        });
+
+        const serializedLogs = JSON.stringify(debug.mock.calls);
+        expect(serializedLogs).not.toContain(secret);
+        expect(serializedLogs).not.toContain('provider.example');
+    });
+
     it.each([false, true])(
         'passes authoritative isLive=%s to raw MPEG-TS playback',
         (isLive) => {
diff --git a/libs/ui/playback/src/lib/html-video-player/html-video-player.component.ts b/libs/ui/playback/src/lib/html-video-player/html-video-player.component.ts
index 25f80a8ca..821667c02 100644
--- a/libs/ui/playback/src/lib/html-video-player/html-video-player.component.ts
+++ b/libs/ui/playback/src/lib/html-video-player/html-video-player.component.ts
@@ -257,7 +257,7 @@ export class HtmlVideoPlayerComponent implements OnInit, OnChanges, OnDestroy {
                 Hls &&
                 Hls.isSupported()
             ) {
-                debugHtmlPlayer('Switching channel to:', channel.name, url);
+                debugHtmlPlayer('Starting HLS playback');
                 const hls = new Hls();
                 this.hls = hls;
                 hls.on(Hls.Events.MANIFEST_PARSED, (_, data) => {