diff --git a/__tests__/unit/config/public-directory.test.ts b/__tests__/unit/config/public-directory.test.ts
index 3f9e549ca..91afc069d 100644
--- a/__tests__/unit/config/public-directory.test.ts
+++ b/__tests__/unit/config/public-directory.test.ts
@@ -25,6 +25,25 @@ describe('public-directory', () => {
     expect(isFixtureGroupTitle('Bitcoin Developers Circle')).toBe(false);
   });
 
+  // A named-prefix list only knows the shapes it has already met. "Audit Group
+  // 1783191071580" was not one of them, so it survived into a live account's
+  // context switcher after its two "Audit WF…" siblings were filtered out.
+  it('hides audit groups whose wording nobody predicted', () => {
+    expect(isFixtureGroupTitle('Audit Group 1783191071580')).toBe(true);
+    expect(isFixtureGroupTitle('Workflow Smoke 1783191071580')).toBe(true);
+    expect(isFixtureGroupTitle('e2e reset 1783191071580')).toBe(true);
+  });
+
+  // The timestamp is what makes the rule safe to widen: a real group is named
+  // by a person, and people do not append an epoch. This matters here more than
+  // most products — OrangeCat is heading for governance, where "Audit
+  // Committee" is a group somebody will genuinely create.
+  it('leaves real groups alone even when they start with an audit word', () => {
+    expect(isFixtureGroupTitle('Audit Committee')).toBe(false);
+    expect(isFixtureGroupTitle('Audit Committee 2026')).toBe(false);
+    expect(isFixtureGroupTitle('Workflow Design Guild')).toBe(false);
+  });
+
   it('treats a profile as fixture if either field matches', () => {
     expect(isFixtureProfile({ username: 'adelina1996gry', name: 'E2E Reset User' })).toBe(true);
     expect(isFixtureProfile({ username: 'adelina1996gry', name: 'Adelina' })).toBe(false);
diff --git a/src/config/public-directory.ts b/src/config/public-directory.ts
index d1e4e62b4..b0e462025 100644
--- a/src/config/public-directory.ts
+++ b/src/config/public-directory.ts
@@ -57,6 +57,19 @@ const EXACT_FIXTURE_USERNAME_SET = new Set<string>(EXACT_FIXTURE_USERNAMES);
 const FIXTURE_DISPLAY_NAME = /^(e2e reset user|user)$/i;
 const FIXTURE_GROUP_TITLE = /^(audit\s+wf|ephemeral\s+verify|workflow\s+audit)/i;
 
+/**
+ * The named prefixes above are an allow-list of shapes we happened to have seen,
+ * and audits keep inventing new ones: "Audit Group 1783191071580" survived the
+ * list above and sat in a live account's context switcher.
+ *
+ * So also match the *generating* signature rather than the wording — an
+ * audit-ish first word followed by the millisecond epoch the fixture appends to
+ * keep names unique. Keying on the timestamp is what keeps a real group safe: a
+ * governance product will one day have an "Audit Committee", and it will not be
+ * called "Audit Committee 1783191071580".
+ */
+const FIXTURE_GROUP_STAMPED = /^(audit|ephemeral|workflow|e2e|wf\d)\b.*\b\d{10,}$/i;
+
 export function isFixtureUsername(username: string | null | undefined): boolean {
   const u = (username ?? '').trim();
   if (u.length === 0) {
@@ -90,5 +103,6 @@ export function isFixtureProfile(profile: {
 }
 
 export function isFixtureGroupTitle(title: string | null | undefined): boolean {
-  return FIXTURE_GROUP_TITLE.test((title ?? '').trim());
+  const t = (title ?? '').trim();
+  return FIXTURE_GROUP_TITLE.test(t) || FIXTURE_GROUP_STAMPED.test(t);
 }