diff --git a/server/dev-server.mjs b/server/dev-server.mjs
index 2f8fc3b..78e9459 100644
--- a/server/dev-server.mjs
+++ b/server/dev-server.mjs
@@ -817,7 +817,7 @@ app.post("/api/admin/task-manager/workspace-memberships/ensure", requireLauncher
     return;
   }
 
-  if (!assertAdminCanManageClient(req, res, client.id) || !assertAdminCanManageUser(req, res, user.id)) {
+  if (!assertAdminCanManageClient(req, res, client.id) || !assertAdminCanManageAccessForUser(req, res, user.id)) {
     return;
   }
 
@@ -878,7 +878,7 @@ app.post("/api/admin/task-manager/workspace-memberships/remove", requireLauncher
     return;
   }
 
-  if (!assertAdminCanManageClient(req, res, client.id) || !assertAdminCanManageUser(req, res, user.id)) {
+  if (!assertAdminCanManageClient(req, res, client.id) || !assertAdminCanManageAccessForUser(req, res, user.id)) {
     return;
   }
 
@@ -959,7 +959,7 @@ app.post("/api/admin/task-manager/project-memberships/ensure", requireLauncherAd
     return;
   }
 
-  if (!assertAdminCanManageClient(req, res, client.id) || !assertAdminCanManageUser(req, res, user.id)) {
+  if (!assertAdminCanManageClient(req, res, client.id) || !assertAdminCanManageAccessForUser(req, res, user.id)) {
     return;
   }
 
@@ -1031,7 +1031,7 @@ app.post("/api/admin/task-manager/project-memberships/remove", requireLauncherAd
     return;
   }
 
-  if (!assertAdminCanManageClient(req, res, client.id) || !assertAdminCanManageUser(req, res, user.id)) {
+  if (!assertAdminCanManageClient(req, res, client.id) || !assertAdminCanManageAccessForUser(req, res, user.id)) {
     return;
   }
 
@@ -1190,7 +1190,15 @@ app.patch("/api/admin/memberships/:membershipId", requireLauncherAdmin, asyncRou
     return;
   }
 
-  if (!assertAdminCanManageMembership(req, res, membership)) {
+  if (!assertAdminCanManageMembership(req, res, membership, { allowProtectedSelf: true })) {
+    return;
+  }
+
+  if (isProtectedSelfManageRequest(req, membership.userId) && req.body?.status && req.body.status !== "active") {
+    res.status(403).json({
+      error: "protected_self_status_locked",
+      message: "Защищённый пользователь может менять себе роли, но не может отключить собственный контур.",
+    });
     return;
   }
 
@@ -1369,6 +1377,10 @@ app.post("/api/admin/groups", requireLauncherAdmin, asyncRoute(async (req, res)
     return;
   }
 
+  if (!assertAdminCanManageProtectedGroupMembers(req, res, [], req.body?.memberIds)) {
+    return;
+  }
+
   const result = await controlPlaneStore.createGroup(req.body, req.nodedcSession.user);
   const syncResult = await syncUsersToAuthentik(result.data, result.group.memberIds, req.nodedcSession.user);
   publishControlPlaneEvent("admin.group.created", syncResult.userIds);
@@ -1389,6 +1401,11 @@ app.patch("/api/admin/groups/:groupId", requireLauncherAdmin, asyncRoute(async (
   }
 
   const previousMemberIds = group.memberIds;
+
+  if (!assertAdminCanManageProtectedGroupMembers(req, res, previousMemberIds, req.body?.memberIds)) {
+    return;
+  }
+
   const result = await controlPlaneStore.updateGroup(req.params.groupId, req.body, req.nodedcSession.user);
   const syncResult = await syncUsersToAuthentik(
     result.data,
@@ -1412,6 +1429,10 @@ app.delete("/api/admin/groups/:groupId", requireLauncherAdmin, asyncRoute(async
     return;
   }
 
+  if (!assertAdminCanManageProtectedGroupMembers(req, res, group.memberIds, [])) {
+    return;
+  }
+
   const result = await controlPlaneStore.deleteGroup(req.params.groupId, req.nodedcSession.user);
   const syncResult = await syncUsersToAuthentik(result.data, result.group.memberIds, req.nodedcSession.user);
   publishControlPlaneEvent("admin.group.deleted", syncResult.userIds);
@@ -1445,7 +1466,7 @@ app.delete("/api/admin/services/:serviceId", requireLauncherAdmin, requireRootLa
 app.post("/api/admin/access/grants", requireLauncherAdmin, asyncRoute(async (req, res) => {
   const snapshot = controlPlaneStore.getSnapshot(req.nodedcSession.user);
 
-  if (!assertAdminCanManageGrantTarget(req, res, snapshot.data, req.body?.targetType, req.body?.targetId)) {
+  if (!assertAdminCanManageGrantTarget(req, res, snapshot.data, req.body?.targetType, req.body?.targetId, { allowProtectedSelf: true })) {
     return;
   }
 
@@ -1460,7 +1481,7 @@ app.post("/api/admin/access/grants", requireLauncherAdmin, asyncRoute(async (req
 }));
 
 app.post("/api/admin/access/exceptions", requireLauncherAdmin, asyncRoute(async (req, res) => {
-  if (!assertAdminCanManageUser(req, res, req.body?.userId)) {
+  if (!assertAdminCanManageAccessForUser(req, res, req.body?.userId)) {
     return;
   }
 
@@ -1471,7 +1492,7 @@ app.post("/api/admin/access/exceptions", requireLauncherAdmin, asyncRoute(async
 }));
 
 app.post("/api/admin/access/user-service", requireLauncherAdmin, asyncRoute(async (req, res) => {
-  if (!assertAdminCanManageUser(req, res, req.body?.userId)) {
+  if (!assertAdminCanManageAccessForUser(req, res, req.body?.userId)) {
     return;
   }
 
@@ -1492,7 +1513,7 @@ app.post("/api/admin/access/user-service", requireLauncherAdmin, asyncRoute(asyn
 }));
 
 app.post("/api/admin/access/service-modules", requireLauncherAdmin, asyncRoute(async (req, res) => {
-  if (!assertAdminCanManageClient(req, res, req.body?.clientId) || !assertAdminCanManageUser(req, res, req.body?.userId)) {
+  if (!assertAdminCanManageClient(req, res, req.body?.clientId) || !assertAdminCanManageAccessForUser(req, res, req.body?.userId)) {
     return;
   }
 
@@ -3183,8 +3204,16 @@ function canAdminManageClient(req, clientId) {
   return Boolean(req.nodedcAdminScope?.isRoot || req.nodedcAdminScope?.clientIds.has(clientId));
 }
 
-function canAdminManageUser(req, userId) {
-  if (protectedLauncherUserIds.has(userId)) {
+function isProtectedLauncherUser(userId) {
+  return protectedLauncherUserIds.has(userId);
+}
+
+function isProtectedSelfManageRequest(req, userId) {
+  return isProtectedLauncherUser(userId) && req.nodedcAdminScope?.actorId === userId;
+}
+
+function canAdminManageUser(req, userId, options = {}) {
+  if (isProtectedLauncherUser(userId) && !(options.allowProtectedSelf && isProtectedSelfManageRequest(req, userId))) {
     return false;
   }
 
@@ -3206,8 +3235,8 @@ function assertAdminCanManageClient(req, res, clientId) {
   return false;
 }
 
-function assertAdminCanManageUser(req, res, userId) {
-  if (canAdminManageUser(req, userId)) {
+function assertAdminCanManageUser(req, res, userId, options = {}) {
+  if (canAdminManageUser(req, userId, options)) {
     return true;
   }
 
@@ -3215,17 +3244,48 @@ function assertAdminCanManageUser(req, res, userId) {
   return false;
 }
 
-function assertAdminCanManageMembership(req, res, membership) {
+function assertAdminCanManageAccessForUser(req, res, userId) {
+  return assertAdminCanManageUser(req, res, userId, { allowProtectedSelf: true });
+}
+
+function assertAdminCanManageProtectedGroupMembers(req, res, previousMemberIds = [], nextMemberIds = []) {
+  if (!Array.isArray(nextMemberIds)) {
+    return true;
+  }
+
+  const previous = new Set(previousMemberIds);
+  const next = new Set(nextMemberIds);
+  const changedProtectedUserIds = [...protectedLauncherUserIds].filter((userId) => previous.has(userId) !== next.has(userId));
+  const blockedUserId = changedProtectedUserIds.find((userId) => !isProtectedSelfManageRequest(req, userId));
+
+  if (!blockedUserId) {
+    return true;
+  }
+
+  res.status(403).json({
+    error: "protected_user_group_membership_locked",
+    message: "Защищённого пользователя может добавлять в группы или удалять из групп только он сам.",
+  });
+  return false;
+}
+
+function assertAdminCanManageMembership(req, res, membership, options = {}) {
   if (!assertAdminCanManageClient(req, res, membership.clientId)) {
     return false;
   }
 
-  return assertAdminCanManageUser(req, res, membership.userId);
+  return assertAdminCanManageUser(req, res, membership.userId, options);
 }
 
-function assertAdminCanManageGrantTarget(req, res, data, targetType, targetId) {
+function assertAdminCanManageGrantTarget(req, res, data, targetType, targetId, options = {}) {
   if (req.nodedcAdminScope?.isRoot) {
-    return true;
+    if (targetType === "client") {
+      return true;
+    }
+
+    if (targetType === "user" && (!isProtectedLauncherUser(targetId) || isProtectedSelfManageRequest(req, targetId) || !options.allowProtectedSelf)) {
+      return true;
+    }
   }
 
   if (targetType === "client") {
@@ -3240,11 +3300,21 @@ function assertAdminCanManageGrantTarget(req, res, data, targetType, targetId) {
       return false;
     }
 
+    const blockedProtectedUserId = group.memberIds.find((userId) => isProtectedLauncherUser(userId) && !isProtectedSelfManageRequest(req, userId));
+
+    if (blockedProtectedUserId) {
+      res.status(403).json({
+        error: "protected_group_access_locked",
+        message: "Гранты группы с защищённым пользователем может менять только сам защищённый пользователь.",
+      });
+      return false;
+    }
+
     return assertAdminCanManageClient(req, res, group.clientId);
   }
 
   if (targetType === "user") {
-    return assertAdminCanManageUser(req, res, targetId);
+    return assertAdminCanManageUser(req, res, targetId, options);
   }
 
   res.status(403).json({ error: "Недостаточно прав для управления этим доступом" });
diff --git a/src/widgets/admin-overlay/AdminOverlay.tsx b/src/widgets/admin-overlay/AdminOverlay.tsx
index 60b741a..9df36fa 100644
--- a/src/widgets/admin-overlay/AdminOverlay.tsx
+++ b/src/widgets/admin-overlay/AdminOverlay.tsx
@@ -163,6 +163,20 @@ const publicPoolSections: Array<{ id: AdminSection; label: string; icon: React.R
   { id: "misc", label: "Разное", icon: <SlidersHorizontal size={16} /> },
 ];
 
+const protectedLauncherUserIds = new Set(["user_root"]);
+
+function isProtectedLauncherUser(userId: string): boolean {
+  return protectedLauncherUserIds.has(userId);
+}
+
+function canSelfManageProtectedUser(me: MeResponse, userId: string): boolean {
+  return isProtectedLauncherUser(userId) && me.user.id === userId;
+}
+
+function isProtectedFromCurrentActor(me: MeResponse, userId: string): boolean {
+  return isProtectedLauncherUser(userId) && !canSelfManageProtectedUser(me, userId);
+}
+
 export function AdminOverlay({
   data,
   me,
@@ -499,6 +513,7 @@ export function AdminOverlay({
               <GroupsSection
                 data={data}
                 clientId={scopedClientId}
+                me={me}
                 onCreateGroup={onCreateGroup}
                 onUpdateGroup={onUpdateGroup}
                 onDeleteGroup={onDeleteGroup}
@@ -517,6 +532,7 @@ export function AdminOverlay({
             {activeSection === "access" ? (
               <AccessSection
                 data={data}
+                me={me}
                 matrix={accessMatrix}
                 selectedCell={selectedAccessCell}
                 onSelectCell={(cell) => setSelectedCell({ userId: cell.userId, serviceId: cell.serviceId })}
@@ -1174,12 +1190,14 @@ function PlatformUsersSection({
 function GroupsSection({
   data,
   clientId,
+  me,
   onCreateGroup,
   onUpdateGroup,
   onDeleteGroup,
 }: {
   data: LauncherData;
   clientId: string;
+  me: MeResponse;
   onCreateGroup: (clientId: string) => void;
   onUpdateGroup: (groupId: string, patch: Partial<ClientGroup>) => void;
   onDeleteGroup: (groupId: string) => void;
@@ -1247,6 +1265,7 @@ function GroupsSection({
       {editingGroup ? (
         <GroupEditorModal
           group={editingGroup}
+          me={me}
           users={data.memberships
             .filter((membership) => membership.clientId === clientId)
             .map((membership) => getUser(data, membership.userId))}
@@ -2674,12 +2693,14 @@ function UserEditorModal({
 
 function GroupEditorModal({
   group,
+  me,
   users,
   onClose,
   onSave,
   onDelete,
 }: {
   group: ClientGroup;
+  me: MeResponse;
   users: LauncherUser[];
   onClose: () => void;
   onSave: (patch: Partial<ClientGroup>) => void;
@@ -2718,17 +2739,23 @@ function GroupEditorModal({
           <div className="service-content-field service-content-field--wide">
             <span>Участники</span>
             <div className="admin-token-grid">
-              {users.map((user) => (
-                <button
-                  key={user.id}
-                  className="admin-token"
-                  data-active={draft.memberIds.includes(user.id)}
-                  type="button"
-                  onClick={() => toggleUser(user.id)}
-                >
-                  {user.name}
-                </button>
-              ))}
+              {users.map((user) => {
+                const lockedProtectedUser = isProtectedFromCurrentActor(me, user.id);
+
+                return (
+                  <button
+                    key={user.id}
+                    className="admin-token"
+                    data-active={draft.memberIds.includes(user.id)}
+                    type="button"
+                    disabled={lockedProtectedUser}
+                    title={lockedProtectedUser ? "Защищённого пользователя может менять в группах только он сам" : undefined}
+                    onClick={() => toggleUser(user.id)}
+                  >
+                    {user.name}
+                  </button>
+                );
+              })}
             </div>
           </div>
         </div>
@@ -2926,6 +2953,7 @@ function mediaKindFromUrl(value: string): MediaKind | null {
 
 function AccessSection({
   data,
+  me,
   matrix,
   selectedCell,
   onSelectCell,
@@ -2942,6 +2970,7 @@ function AccessSection({
   onSetServiceModuleEntitlement,
 }: {
   data: LauncherData;
+  me: MeResponse;
   matrix: ReturnType<typeof buildAccessMatrix>;
   selectedCell: AccessMatrixCell | null;
   onSelectCell: (cell: AccessMatrixCell) => void;
@@ -3011,7 +3040,9 @@ function AccessSection({
               const membership = data.memberships.find((item) => item.clientId === matrix.client.id && item.userId === user.id);
               if (!membership) return null;
 
-              const protectedUser = user.id === "user_root";
+              const protectedUser = isProtectedLauncherUser(user.id);
+              const protectedFromActor = isProtectedFromCurrentActor(me, user.id);
+              const protectedSelfManage = canSelfManageProtectedUser(me, user.id);
               const inviterMeta = getMembershipInviterMeta(data, membership);
               const pendingKey = `${matrix.client.id}:${user.id}:${primaryTaskManagerWorkspace?.slug ?? "primary"}`;
               const pendingTaskerAssignment = Boolean(pendingTaskManagerMemberships[pendingKey]);
@@ -3038,7 +3069,7 @@ function AccessSection({
                   <div className="access-grid-cell" role="cell">
                     <MainRoleControl
                       value={membership.role}
-                      protectedUser={protectedUser}
+                      protectedUser={protectedFromActor}
                       onChange={(role) => onUpdateMembership(membership.id, { role })}
                     />
                   </div>
@@ -3056,13 +3087,14 @@ function AccessSection({
                           pendingValue={pendingAccessAssignments[accessCellKey(user.id, service.id)]}
                           busy={!usePublicTaskerAccess && isTaskManagerService && pendingTaskerAssignment}
                           publicSelfService={usePublicTaskerAccess}
+                          readOnly={protectedFromActor}
                           onSelectCell={onSelectCell}
                           onSetAccess={(value) => {
                             const nextValue = value;
                             onSetUserServiceAccess({ userId: user.id, serviceId: service.id, value: nextValue });
 
                             if (usePublicTaskerAccess) return;
-                            if (!isTaskManagerService || !primaryTaskManagerWorkspace || protectedUser || forcedTaskManagerAdmin) return;
+                            if (!isTaskManagerService || !primaryTaskManagerWorkspace || protectedFromActor || (forcedTaskManagerAdmin && !protectedSelfManage)) return;
 
                             onSetTaskManagerWorkspaceMemberRole({
                               clientId: matrix.client.id,
@@ -3086,6 +3118,7 @@ function AccessSection({
       {detailsCell && detailsService ? (
         <OperationalCoreAccessModal
           data={data}
+          me={me}
           client={matrix.client}
           user={getUser(data, detailsCell.userId)}
           service={detailsService}
@@ -3110,6 +3143,7 @@ function AccessSection({
 
 function PublicAccessUsersPanel({
   data,
+  me,
   matrix,
   selectedCell,
   onSelectCell,
@@ -3121,6 +3155,7 @@ function PublicAccessUsersPanel({
   onSetServiceModuleEntitlement,
 }: {
   data: LauncherData;
+  me: MeResponse;
   matrix: ReturnType<typeof buildAccessMatrix>;
   selectedCell: AccessMatrixCell | null;
   onSelectCell: (cell: AccessMatrixCell) => void;
@@ -3161,7 +3196,8 @@ function PublicAccessUsersPanel({
             const membership = data.memberships.find((item) => item.clientId === matrix.client.id && item.userId === user.id);
             if (!membership) return null;
 
-            const protectedUser = user.id === "user_root";
+            const protectedUser = isProtectedLauncherUser(user.id);
+            const protectedFromActor = isProtectedFromCurrentActor(me, user.id);
             const inviterMeta = getMembershipInviterMeta(data, membership);
             const operationalCoreCell = operationalCoreService
               ? matrix.cells.find((cell) => cell.userId === user.id && cell.serviceId === operationalCoreService.id) ?? null
@@ -3196,7 +3232,7 @@ function PublicAccessUsersPanel({
                   )}
                 </td>
                 <td>
-                  {protectedUser ? (
+                  {protectedFromActor ? (
                     <AdminStaticPill>{membershipRoleLabel(membership.role)}</AdminStaticPill>
                   ) : (
                     <NodeDcSelect
@@ -3253,6 +3289,7 @@ function PublicAccessUsersPanel({
       {detailsCell && detailsService ? (
         <OperationalCoreAccessModal
           data={data}
+          me={me}
           client={matrix.client}
           user={getUser(data, detailsCell.userId)}
           service={detailsService}
@@ -3360,6 +3397,7 @@ function MainRoleControl({
 
 function OperationalCoreAccessModal({
   data,
+  me,
   client,
   user,
   service,
@@ -3378,6 +3416,7 @@ function OperationalCoreAccessModal({
   onSetServiceModuleEntitlement,
 }: {
   data: LauncherData;
+  me: MeResponse;
   client: Client;
   user: LauncherUser;
   service: Service;
@@ -3396,7 +3435,8 @@ function OperationalCoreAccessModal({
   onSetServiceModuleEntitlement: (command: SetServiceModuleEntitlementCommand) => void;
 }) {
   const membership = data.memberships.find((item) => item.clientId === client.id && item.userId === user.id);
-  const protectedUser = user.id === "user_root" || membership?.role === "client_owner";
+  const protectedSelfManage = canSelfManageProtectedUser(me, user.id);
+  const protectedUser = isProtectedFromCurrentActor(me, user.id) || (membership?.role === "client_owner" && !protectedSelfManage);
   const basePendingValue = pendingAccessAssignments[accessCellKey(user.id, service.id)];
   const baseAssignmentValue = basePendingValue ?? accessAssignmentValue(cell);
   const baseSelectOptions = publicSelfService ? publicOperationalCoreAccessOptions : accessAssignmentOptions;
@@ -3628,6 +3668,7 @@ function AccessCellControl({
   pendingValue,
   busy = false,
   publicSelfService = false,
+  readOnly = false,
   onSelectCell,
   onSetAccess,
   onOpenDetails,
@@ -3637,6 +3678,7 @@ function AccessCellControl({
   pendingValue?: AccessAssignmentValue;
   busy?: boolean;
   publicSelfService?: boolean;
+  readOnly?: boolean;
   onSelectCell: (cell: AccessMatrixCell) => void;
   onSetAccess: (value: AccessAssignmentValue) => void;
   onOpenDetails?: () => void;
@@ -3663,6 +3705,7 @@ function AccessCellControl({
     cell.effectiveAccess.allowed && "access-cell--allowed",
     !cell.effectiveAccess.allowed && "access-cell--denied",
     cell.effectiveAccess.source === "exception" && !publicSelfService && "access-cell--exception",
+    readOnly && "access-cell--readonly",
     isPending && "access-cell--pending",
     active && "access-cell--active"
   );
@@ -3685,6 +3728,15 @@ function AccessCellControl({
     );
   }
 
+  if (readOnly) {
+    return (
+      <span className={cellClassName}>
+        <strong>{displayTitle}</strong>
+        <span>{displaySource}</span>
+      </span>
+    );
+  }
+
   return (
     <NodeDcSelect
       value={selectValue}