diff --git a/task.md b/task.md
index 0e5d9a9..5659d63 100644
--- a/task.md
+++ b/task.md
@@ -35,11 +35,13 @@ Planning and Architecture Definition.
 
 ### Phase 4: Verification
 
-### Phase 4: Verification
+### Phase 4: Verification & Stabilization
 
 - [x] [TEST] Verify implementation builds correctly (`npm run build`)
 - [x] [FIX] **Deployment**: Implemented automated safe DB migration on startup
-- [ ] [TEST] Simulate Token Refresh Job
+- [x] [FIX] **Encryption**: Unified TokenManager encryption with storage service (Fixed Invalid Token error)
+- [x] [FIX] **Resilience**: Added auto-expiration for invalid tokens in `AnalyticsService`
+- [x] [FIX] **Feedback**: Improved error reporting in `AnalyticsService`
 - [ ] [MANUAL] Validate Analytics Data accuracy through UI
 
 ## Progress Log