diff --git a/reset_apps.ts b/reset_apps.ts
index f897c21..6eb6948 100644
--- a/reset_apps.ts
+++ b/reset_apps.ts
@@ -43,7 +43,7 @@ async function reset() {
         await db.ApplicationProgress.destroy({ 
             where: { 
                 applicationId: app.id,
-                stageName: ['LOI Approval', 'Security Details', 'LOI Issue', 'Dealer Code Generation', 'Architecture Team Assigned', 'Statutory GST']
+                stageName: ['LOI Approval', 'Security Deposit', 'LOI Issue', 'Dealer Code Generation', 'Architecture Team Assigned', 'Statutory GST']
             } 
         });
 
diff --git a/scripts/sql/application_security_deposit_status_rename.sql b/scripts/sql/application_security_deposit_status_rename.sql
new file mode 100644
index 0000000..02ccbb2
--- /dev/null
+++ b/scripts/sql/application_security_deposit_status_rename.sql
@@ -0,0 +1,18 @@
+-- Rename overallStatus value Security Details -> Security Deposit (canonical label from APPLICATION_STATUS.SECURITY_DETAILS).
+-- Run once per environment AFTER deploying code that uses 'Security Deposit'.
+--
+-- 1) Discover enum type name for applications.overallStatus:
+--    SELECT c.column_name, c.udt_name
+--    FROM information_schema.columns c
+--    WHERE c.table_schema = 'public' AND c.table_name = 'applications' AND c.column_name = 'overallStatus';
+--
+-- 2) Add new enum value (PostgreSQL 9.1+). Replace type name if yours differs.
+--    ALTER TYPE "enum_applications_overallStatus" ADD VALUE IF NOT EXISTS 'Security Deposit';
+--
+-- 3) Backfill rows (camelCase column is typical for this Sequelize project).
+--    UPDATE applications SET "overallStatus" = 'Security Deposit' WHERE "overallStatus" = 'Security Details';
+--
+-- 4) Backfill ApplicationProgress pipeline stage label (see ONBOARDING_STAGES in progress.ts).
+--    UPDATE application_progress SET "stageName" = 'Security Deposit' WHERE "stageName" = 'Security Details';
+
+-- Minimal safe block: only step 3+4 if you use VARCHAR-like enums; for native ENUM you must run step 2 first (cannot be in same transaction as use of new value on older PG — run ADD VALUE, COMMIT, then UPDATE).
diff --git a/src/common/config/constants.ts b/src/common/config/constants.ts
index 3998184..82bb690 100644
--- a/src/common/config/constants.ts
+++ b/src/common/config/constants.ts
@@ -85,7 +85,7 @@ export const APPLICATION_STATUS = {
   LEVEL_3_PENDING: 'Level 3 Interview Pending',
   LEVEL_3_APPROVED: 'Level 3 Approved',
   FDD_VERIFICATION: 'FDD Verification',
-  SECURITY_DETAILS: 'Security Details',
+  SECURITY_DETAILS: 'Security Deposit',
   PAYMENT_PENDING: 'Payment Pending',
   LOI_IN_PROGRESS: 'LOI In Progress',
   LOI_ISSUED: 'LOI Issued',
@@ -142,6 +142,8 @@ export const OVERALL_STATUS_TO_DB_CURRENT_STAGE: Record<
     [APPLICATION_STATUS.LEVEL_3_APPROVED]: APPLICATION_STAGES.LEVEL_3_APPROVED,
     [APPLICATION_STATUS.FDD_VERIFICATION]: APPLICATION_STAGES.FDD,
     [APPLICATION_STATUS.SECURITY_DETAILS]: APPLICATION_STAGES.LOI,
+    /** Legacy `overallStatus` before rename; remove after DB migrated */
+    'Security Details': APPLICATION_STAGES.LOI,
     [APPLICATION_STATUS.PAYMENT_PENDING]: APPLICATION_STAGES.LOI,
     [APPLICATION_STATUS.LOI_IN_PROGRESS]: APPLICATION_STAGES.LOI,
     [APPLICATION_STATUS.LOI_ISSUED]: APPLICATION_STAGES.LOI,
diff --git a/src/common/utils/progress.ts b/src/common/utils/progress.ts
index 1f1db2d..93f36ac 100644
--- a/src/common/utils/progress.ts
+++ b/src/common/utils/progress.ts
@@ -10,7 +10,7 @@ export const ONBOARDING_STAGES = [
     { name: '3rd Level Interview', order: 6 },
     { name: 'FDD', order: 7 },
     { name: 'LOI Approval', order: 8 },
-    { name: 'Security Details', order: 9 },
+    { name: 'Security Deposit', order: 9 },
     { name: 'LOI Issue', order: 10 },
     { name: 'Dealer Code Generation', order: 11 },
     { name: 'Architecture Work', order: 12 },
@@ -107,8 +107,10 @@ export const PIPELINE_STAGE_LABEL_BY_OVERALL_STATUS: Record<string, string> = {
     'Level 3 Approved': '3rd Level Interview',
     'FDD Verification': 'FDD',
     'LOI In Progress': 'LOI Approval',
-    'Security Details': 'Security Details',
-    'Payment Pending': 'Security Details',
+    /** @deprecated DB rows may still use pre-rename label until migrated */
+    'Security Details': 'Security Deposit',
+    'Security Deposit': 'Security Deposit',
+    'Payment Pending': 'Security Deposit',
     'LOI Issued': 'LOI Issue',
     'Statutory LOI Ack': 'LOI Issue',
     'Dealer Code Generation': 'Dealer Code Generation',
diff --git a/src/modules/audit/audit.controller.ts b/src/modules/audit/audit.controller.ts
index a79ea88..574e977 100644
--- a/src/modules/audit/audit.controller.ts
+++ b/src/modules/audit/audit.controller.ts
@@ -51,7 +51,7 @@ const ACTION_DESCRIPTIONS: Record<string, string> = {
     DEALER_UPDATED: 'Dealer profile updated',
     DEALER_CODE_GENERATED: 'Dealer code generated',
     PAYMENT_UPDATED: 'Payment record updated',
-    SECURITY_DEPOSIT_UPDATED: 'Security deposit updated',
+    SECURITY_DEPOSIT_UPDATED: 'Security Deposit updated',
     FNF_UPDATED: 'F&F settlement updated',
     CLEARANCE_UPDATED: 'Departmental clearance response recorded',
     STAKEHOLDER_CLEARANCE_UPDATED: 'F&F stakeholder clearance synced',
diff --git a/src/modules/loa/loa.controller.ts b/src/modules/loa/loa.controller.ts
index 342156e..405561c 100644
--- a/src/modules/loa/loa.controller.ts
+++ b/src/modules/loa/loa.controller.ts
@@ -451,13 +451,15 @@ export const updateSecurityDeposit = async (req: AuthRequest, res: Response) =>
         if ((depositType === 'SECURITY_DEPOSIT' || !depositType) && status === 'Verified') {
             const os = application.overallStatus;
             const inInitialSdCorridor =
-                os === APPLICATION_STATUS.PAYMENT_PENDING || os === APPLICATION_STATUS.SECURITY_DETAILS;
+                os === APPLICATION_STATUS.PAYMENT_PENDING ||
+                os === APPLICATION_STATUS.SECURITY_DETAILS ||
+                os === 'Security Details';
             if (inInitialSdCorridor) {
                 console.log(
-                    `[DEBUG] SECURITY_DEPOSIT verified (overallStatus=${os}). Aligning to Security Details for admin before LOI Issued.`,
+                    `[DEBUG] SECURITY_DEPOSIT verified (overallStatus=${os}). Aligning to Security Deposit for admin before LOI Issued.`,
                 );
                 await WorkflowService.transitionApplication(application, APPLICATION_STATUS.SECURITY_DETAILS, req.user?.id || null, {
-                    reason: 'Security deposit verified by Finance. Awaiting admin approval to proceed to LOI issuance.',
+                    reason: 'Security Deposit verified by Finance. Awaiting admin approval to proceed to LOI issuance.',
                     stage: APPLICATION_STAGES.LOI,
                     progressPercentage: 78
                 });
@@ -492,7 +494,7 @@ export const updateSecurityDeposit = async (req: AuthRequest, res: Response) =>
         res.json({ success: true, message: 'Security Deposit updated', data: updatedDeposit });
     } catch (error) {
         console.error('Update Security Deposit error:', error);
-        res.status(500).json({ success: false, message: 'Error updating security deposit' });
+        res.status(500).json({ success: false, message: 'Error updating Security Deposit' });
     }
 };
 
@@ -517,6 +519,6 @@ export const getSecurityDeposit = async (req: Request, res: Response) => {
         res.json({ success: true, data: deposits });
     } catch (error) {
         console.error('Fetch Security Deposit error:', error);
-        res.status(500).json({ success: false, message: 'Error fetching security deposit' });
+        res.status(500).json({ success: false, message: 'Error fetching Security Deposit' });
     }
 };
diff --git a/src/modules/loi/loi.controller.ts b/src/modules/loi/loi.controller.ts
index ec1e35e..b83c837 100644
--- a/src/modules/loi/loi.controller.ts
+++ b/src/modules/loi/loi.controller.ts
@@ -111,8 +111,8 @@ export const acknowledgeRequest = async (req: AuthRequest, res: Response) => {
             const phone = (applicantUser as any)?.mobileNumber || application.phone || '';
 
             await NotificationService.notify(applicantUser?.id ?? null, application.email, {
-                title: `Security deposit — ${application.applicationId}`,
-                message: `Please remit the security deposit for ${application.applicationId} as per your LOI.`,
+                title: `Security Deposit — ${application.applicationId}`,
+                message: `Please remit the Security Deposit for ${application.applicationId} as per your LOI.`,
                 channels: phone ? ['email', 'whatsapp'] : ['email'],
                 templateCode: 'SECURITY_DEPOSIT_REQUEST',
                 placeholders: {
@@ -125,7 +125,7 @@ export const acknowledgeRequest = async (req: AuthRequest, res: Response) => {
                     ctaLabel: 'Pay or upload proof',
                     phone: String(phone || '')
                 }
-            }).catch((e: any) => console.error('[LOI] Security deposit email failed:', e));
+            }).catch((e: any) => console.error('[LOI] Security Deposit email failed:', e));
         }
 
         res.json({ success: true, message: 'LOI Acknowledged by applicant' });
diff --git a/src/scripts/seed-master-emails.ts b/src/scripts/seed-master-emails.ts
index 8fb1339..515e324 100644
--- a/src/scripts/seed-master-emails.ts
+++ b/src/scripts/seed-master-emails.ts
@@ -145,7 +145,7 @@ const seedTemplates = async () => {
             },
             {
                 templateCode: 'ONBOARDING_PAYMENT_VERIFIED',
-                description: 'Notification when security deposit or initial payment is verified',
+                description: 'Notification when Security Deposit or initial payment is verified',
                 subject: 'Payment Verified: {{applicationId}}',
                 fileName: 'onboarding_payment_verified.html',
                 placeholders: ['applicationId', 'dealerName', 'paymentType', 'amount', 'link']
@@ -355,7 +355,7 @@ const seedTemplates = async () => {
             },
             {
                 templateCode: 'SECURITY_DEPOSIT_REQUEST',
-                description: 'After LOI acknowledgement: security deposit payment instructions',
+                description: 'After LOI acknowledgement: Security Deposit payment instructions',
                 subject: 'Security Deposit Payment Required — {{applicationId}}',
                 fileName: 'security_deposit_request.html',
                 placeholders: ['applicantName', 'applicationId', 'amount', 'dueDate', 'bankDetails', 'link', 'ctaLabel']
diff --git a/src/services/WorkflowIntegrityService.ts b/src/services/WorkflowIntegrityService.ts
index 1298034..a564a75 100644
--- a/src/services/WorkflowIntegrityService.ts
+++ b/src/services/WorkflowIntegrityService.ts
@@ -26,7 +26,14 @@ export class WorkflowIntegrityService {
             }
 
             // LOI STAGE INTEGRITY
-            if ([APPLICATION_STATUS.LOI_IN_PROGRESS, APPLICATION_STATUS.PAYMENT_PENDING, APPLICATION_STATUS.SECURITY_DETAILS].includes(application.overallStatus)) {
+            // Include legacy DB label "Security Details" until data migration completes.
+            const loiPreIssuedStatuses = [
+                APPLICATION_STATUS.LOI_IN_PROGRESS,
+                APPLICATION_STATUS.PAYMENT_PENDING,
+                APPLICATION_STATUS.SECURITY_DETAILS,
+                'Security Details'
+            ];
+            if (loiPreIssuedStatuses.includes(application.overallStatus)) {
                 await this.syncLoiIntegrity(application);
             }
 
@@ -114,7 +121,7 @@ export class WorkflowIntegrityService {
         });
 
         if (policyMet && deposit) {
-            console.log(`[WorkflowIntegrityService] Policy met and payment verified for LOI on ${application.applicationId}. Aligning to Security Details for admin approval before LOI Issued.`);
+            console.log(`[WorkflowIntegrityService] Policy met and payment verified for LOI on ${application.applicationId}. Aligning to Security Deposit for admin approval before LOI Issued.`);
 
             // Ensure LoiRequest is also updated
             const request = await db.LoiRequest.findOne({ where: { applicationId: application.id } });
@@ -123,7 +130,7 @@ export class WorkflowIntegrityService {
             }
 
             await WorkflowService.transitionApplication(application, APPLICATION_STATUS.SECURITY_DETAILS, null, {
-                reason: 'Integrity sync: LOI policy and deposit verified — use Security Details admin approval to reach LOI Issued.',
+                reason: 'Integrity sync: LOI policy and deposit verified — use Security Deposit admin approval to reach LOI Issued.',
                 progressPercentage: 78
             });
         }
diff --git a/trigger-workflow.js b/trigger-workflow.js
index cb160be..8ce1e15 100644
--- a/trigger-workflow.js
+++ b/trigger-workflow.js
@@ -426,8 +426,8 @@ async function triggerWorkflow() {
     await ensureMandatoryCodeGenFields(applicationUUID, adminToken);
     await delay(300);
 
-    if (statusBeforeCodeGen === 'Security Details') {
-        log(9, 'Status is Security Details; re-verifying Security Deposit to move to LOI Issued...');
+    if (statusBeforeCodeGen === 'Security Deposit' || statusBeforeCodeGen === 'Security Details') {
+        log(9, 'Status is Security Deposit (or legacy Security Details); re-verifying Security Deposit to move to LOI Issued...');
         await apiRequest('/loa/security-deposit', 'POST', {
             applicationId: applicationUUID,
             amount: 500000,
@@ -440,13 +440,13 @@ async function triggerWorkflow() {
         log(9, `Status after re-verify: ${statusBeforeCodeGen}`);
     }
 
-    // Current backend flow keeps app at "Security Details" until explicit admin transition.
-    if (statusBeforeCodeGen === 'Security Details') {
-        log(9, 'Applying admin transition from Security Details -> LOI Issued...');
+    // Current backend flow keeps app at Security Deposit until explicit admin transition.
+    if (statusBeforeCodeGen === 'Security Deposit' || statusBeforeCodeGen === 'Security Details') {
+        log(9, 'Applying admin transition from Security Deposit -> LOI Issued...');
         await apiRequest(`/onboarding/applications/${applicationUUID}/status`, 'PUT', {
             status: 'LOI Issued',
             stage: 'LOI',
-            reason: 'E2E script alignment: unlock dealer code generation after Security Details checks.'
+            reason: 'E2E script alignment: unlock dealer code generation after Security Deposit checks.'
         }, adminToken);
         await delay();
         statusBeforeCodeGen = await getApplicationStatus(applicationUUID, adminToken);