diff --git a/packages/curve-ui-kit/src/hooks/useFeatureFlags.ts b/packages/curve-ui-kit/src/hooks/useFeatureFlags.ts
index 1c6ba86c6e..38abf2b07f 100644
--- a/packages/curve-ui-kit/src/hooks/useFeatureFlags.ts
+++ b/packages/curve-ui-kit/src/hooks/useFeatureFlags.ts
@@ -41,3 +41,10 @@ export const useManageSoftLiquidation = useAlphaChannel
 
 /** Entire new app containing in-depth analyses for knowledgeable users */
 export const useAnalyticsApp = useAlphaChannel
+
+/**
+ * Phishing warning banner shown on localhost and production, hidden on preview,
+ * but forced on in CI so automated tests keep working
+ */
+export const usePhishingBanner = () =>
+  process.env.NODE_ENV === 'development' || defaultReleaseChannel === ReleaseChannel.Stable || Boolean(process.env.CI)
diff --git a/packages/curve-ui-kit/src/widgets/Header/PhishingWarningBanner.tsx b/packages/curve-ui-kit/src/widgets/Header/PhishingWarningBanner.tsx
index d8ffc37c62..f3b82033d6 100644
--- a/packages/curve-ui-kit/src/widgets/Header/PhishingWarningBanner.tsx
+++ b/packages/curve-ui-kit/src/widgets/Header/PhishingWarningBanner.tsx
@@ -1,3 +1,4 @@
+import { usePhishingBanner } from '@ui-kit/hooks/useFeatureFlags'
 import { useDismissBanner } from '@ui-kit/hooks/useLocalStorage'
 import { t } from '@ui-kit/lib/i18n'
 import { Banner } from '@ui-kit/shared/ui/Banner'
@@ -10,10 +11,15 @@ const ONE_MONTH_MS = 30 * 24 * 60 * 60 * 1000 // 30 days in milliseconds
  * The banner will reappear after one month if dismissed.
  */
 export const PhishingWarningBanner = () => {
-  const { shouldShowBanner, dismissBanner } = useDismissBanner('phishing-warning-dismissed', ONE_MONTH_MS)
+  const shouldShowBanner = usePhishingBanner()
+  const { shouldShowBanner: isNotDismissed, dismissBanner } = useDismissBanner(
+    'phishing-warning-dismissed',
+    ONE_MONTH_MS,
+  )
 
   return (
-    shouldShowBanner && (
+    shouldShowBanner &&
+    isNotDismissed && (
       <Banner
         subtitle={t`Always carefully check that your URL is ${URL}.`}
         severity="warning"