diff --git a/src/api/public/me/me.controller.spec.ts b/src/api/public/me/me.controller.spec.ts
index 5b8d6f7ff..4f1daf4a0 100644
--- a/src/api/public/me/me.controller.spec.ts
+++ b/src/api/public/me/me.controller.spec.ts
@@ -23,6 +23,8 @@ import { HistoryEntry } from '../../../history/history-entry.entity';
 import { NoteGroupPermission } from '../../../permissions/note-group-permission.entity';
 import { NoteUserPermission } from '../../../permissions/note-user-permission.entity';
 import { Group } from '../../../groups/group.entity';
+import { ConfigModule } from '@nestjs/config';
+import appConfigMock from '../../../config/app.config.mock';
 
 describe('Me Controller', () => {
   let controller: MeController;
@@ -30,7 +32,16 @@ describe('Me Controller', () => {
   beforeEach(async () => {
     const module: TestingModule = await Test.createTestingModule({
       controllers: [MeController],
-      imports: [UsersModule, HistoryModule, NotesModule, LoggerModule],
+      imports: [
+        UsersModule,
+        HistoryModule,
+        NotesModule,
+        LoggerModule,
+        ConfigModule.forRoot({
+          isGlobal: true,
+          load: [appConfigMock],
+        }),
+      ],
     })
       .overrideProvider(getRepositoryToken(User))
       .useValue({})
diff --git a/src/api/public/notes/notes.controller.spec.ts b/src/api/public/notes/notes.controller.spec.ts
index 187e5ef1b..117b4fd9f 100644
--- a/src/api/public/notes/notes.controller.spec.ts
+++ b/src/api/public/notes/notes.controller.spec.ts
@@ -26,6 +26,8 @@ import { NoteGroupPermission } from '../../../permissions/note-group-permission.
 import { NoteUserPermission } from '../../../permissions/note-user-permission.entity';
 import { Group } from '../../../groups/group.entity';
 import { GroupsModule } from '../../../groups/groups.module';
+import { ConfigModule } from '@nestjs/config';
+import appConfigMock from '../../../config/app.config.mock';
 
 describe('Notes Controller', () => {
   let controller: NotesController;
@@ -51,6 +53,10 @@ describe('Notes Controller', () => {
         LoggerModule,
         PermissionsModule,
         HistoryModule,
+        ConfigModule.forRoot({
+          isGlobal: true,
+          load: [appConfigMock],
+        }),
       ],
     })
       .overrideProvider(getRepositoryToken(Note))
diff --git a/src/config/app.config.mock.ts b/src/config/app.config.mock.ts
index 9b013a75c..6e23d5dfb 100644
--- a/src/config/app.config.mock.ts
+++ b/src/config/app.config.mock.ts
@@ -8,4 +8,5 @@ import { registerAs } from '@nestjs/config';
 
 export default registerAs('appConfig', () => ({
   port: 3000,
+  forbiddenNoteIds: ['forbiddenNoteId'],
 }));
diff --git a/src/config/app.config.ts b/src/config/app.config.ts
index 85b52d70b..c25b19628 100644
--- a/src/config/app.config.ts
+++ b/src/config/app.config.ts
@@ -7,12 +7,13 @@
 import { registerAs } from '@nestjs/config';
 import * as Joi from 'joi';
 import { Loglevel } from './loglevel.enum';
-import { buildErrorMessage } from './utils';
+import { buildErrorMessage, toArrayConfig } from './utils';
 
 export interface AppConfig {
   domain: string;
   port: number;
   loglevel: Loglevel;
+  forbiddenNoteIds: string[];
 }
 
 const schema = Joi.object({
@@ -23,6 +24,10 @@ const schema = Joi.object({
     .default(Loglevel.WARN)
     .optional()
     .label('HD_LOGLEVEL'),
+  forbiddenNoteIds: Joi.string()
+    .optional()
+    .default([])
+    .label('HD_FORBIDDEN_NOTE_IDS'),
 });
 
 export default registerAs('appConfig', () => {
@@ -31,6 +36,7 @@ export default registerAs('appConfig', () => {
       domain: process.env.HD_DOMAIN,
       port: parseInt(process.env.PORT) || undefined,
       loglevel: process.env.HD_LOGLEVEL,
+      forbiddenNoteIds: toArrayConfig(process.env.HD_FORBIDDEN_NOTE_IDS, ','),
     },
     {
       abortEarly: false,
diff --git a/src/history/history.module.ts b/src/history/history.module.ts
index 410d50863..20bf1746d 100644
--- a/src/history/history.module.ts
+++ b/src/history/history.module.ts
@@ -11,6 +11,7 @@ import { TypeOrmModule } from '@nestjs/typeorm';
 import { HistoryEntry } from './history-entry.entity';
 import { UsersModule } from '../users/users.module';
 import { NotesModule } from '../notes/notes.module';
+import { ConfigModule } from '@nestjs/config';
 
 @Module({
   providers: [HistoryService],
@@ -20,6 +21,7 @@ import { NotesModule } from '../notes/notes.module';
     TypeOrmModule.forFeature([HistoryEntry]),
     UsersModule,
     NotesModule,
+    ConfigModule,
   ],
 })
 export class HistoryModule {}
diff --git a/src/history/history.service.spec.ts b/src/history/history.service.spec.ts
index fe104eb1c..9956ecc74 100644
--- a/src/history/history.service.spec.ts
+++ b/src/history/history.service.spec.ts
@@ -30,6 +30,8 @@ import { NotInDBError } from '../errors/errors';
 import { NoteGroupPermission } from '../permissions/note-group-permission.entity';
 import { NoteUserPermission } from '../permissions/note-user-permission.entity';
 import { Group } from '../groups/group.entity';
+import { ConfigModule } from '@nestjs/config';
+import appConfigMock from '../config/app.config.mock';
 
 describe('HistoryService', () => {
   let service: HistoryService;
@@ -45,7 +47,15 @@ describe('HistoryService', () => {
           useClass: Repository,
         },
       ],
-      imports: [LoggerModule, UsersModule, NotesModule],
+      imports: [
+        LoggerModule,
+        UsersModule,
+        NotesModule,
+        ConfigModule.forRoot({
+          isGlobal: true,
+          load: [appConfigMock],
+        }),
+      ],
     })
       .overrideProvider(getRepositoryToken(User))
       .useValue({})
diff --git a/src/media/media.service.spec.ts b/src/media/media.service.spec.ts
index d84a98dba..d04017a79 100644
--- a/src/media/media.service.spec.ts
+++ b/src/media/media.service.spec.ts
@@ -34,6 +34,7 @@ import { ClientError, NotInDBError, PermissionError } from '../errors/errors';
 import { NoteGroupPermission } from '../permissions/note-group-permission.entity';
 import { NoteUserPermission } from '../permissions/note-user-permission.entity';
 import { Group } from '../groups/group.entity';
+import appConfigMock from '../../src/config/app.config.mock';
 
 describe('MediaService', () => {
   let service: MediaService;
@@ -54,7 +55,7 @@ describe('MediaService', () => {
       imports: [
         ConfigModule.forRoot({
           isGlobal: true,
-          load: [mediaConfigMock],
+          load: [mediaConfigMock, appConfigMock],
         }),
         LoggerModule,
         NotesModule,
diff --git a/src/notes/notes.module.ts b/src/notes/notes.module.ts
index 609489ac3..685752038 100644
--- a/src/notes/notes.module.ts
+++ b/src/notes/notes.module.ts
@@ -16,6 +16,7 @@ import { Tag } from './tag.entity';
 import { NoteGroupPermission } from '../permissions/note-group-permission.entity';
 import { NoteUserPermission } from '../permissions/note-user-permission.entity';
 import { GroupsModule } from '../groups/groups.module';
+import { ConfigModule } from '@nestjs/config';
 
 @Module({
   imports: [
@@ -30,6 +31,7 @@ import { GroupsModule } from '../groups/groups.module';
     UsersModule,
     GroupsModule,
     LoggerModule,
+    ConfigModule,
   ],
   controllers: [],
   providers: [NotesService],
diff --git a/src/notes/notes.service.spec.ts b/src/notes/notes.service.spec.ts
index f1858f30b..6ffca14b1 100644
--- a/src/notes/notes.service.spec.ts
+++ b/src/notes/notes.service.spec.ts
@@ -37,6 +37,8 @@ import { NoteGroupPermission } from '../permissions/note-group-permission.entity
 import { NoteUserPermission } from '../permissions/note-user-permission.entity';
 import { GroupsModule } from '../groups/groups.module';
 import { Group } from '../groups/group.entity';
+import { ConfigModule, ConfigService } from '@nestjs/config';
+import appConfigMock from '../config/app.config.mock';
 
 describe('NotesService', () => {
   let service: NotesService;
@@ -58,7 +60,16 @@ describe('NotesService', () => {
           useClass: Repository,
         },
       ],
-      imports: [LoggerModule, UsersModule, GroupsModule, RevisionsModule],
+      imports: [
+        ConfigModule.forRoot({
+          isGlobal: true,
+          load: [appConfigMock],
+        }),
+        LoggerModule,
+        UsersModule,
+        GroupsModule,
+        RevisionsModule,
+      ],
     })
       .overrideProvider(getRepositoryToken(Note))
       .useClass(Repository)
diff --git a/src/notes/notes.service.ts b/src/notes/notes.service.ts
index 0ff2e7112..0ecbbe57f 100644
--- a/src/notes/notes.service.ts
+++ b/src/notes/notes.service.ts
@@ -30,6 +30,7 @@ import { NoteUserPermission } from '../permissions/note-user-permission.entity';
 import { NoteGroupPermission } from '../permissions/note-group-permission.entity';
 import { GroupsService } from '../groups/groups.service';
 import { checkArrayForDuplicates } from '../utils/arrayDuplicatCheck';
+import appConfiguration, { AppConfig } from '../config/app.config';
 
 @Injectable()
 export class NotesService {
@@ -41,6 +42,8 @@ export class NotesService {
     @Inject(GroupsService) private groupsService: GroupsService,
     @Inject(forwardRef(() => RevisionsService))
     private revisionsService: RevisionsService,
+    @Inject(appConfiguration.KEY)
+    private appConfig: AppConfig,
   ) {
     this.logger.setContext(NotesService.name);
   }
diff --git a/src/permissions/permissions.service.spec.ts b/src/permissions/permissions.service.spec.ts
index a5bcde491..c612b360a 100644
--- a/src/permissions/permissions.service.spec.ts
+++ b/src/permissions/permissions.service.spec.ts
@@ -28,6 +28,8 @@ import { NoteGroupPermission } from './note-group-permission.entity';
 import { NoteUserPermission } from './note-user-permission.entity';
 import { PermissionsModule } from './permissions.module';
 import { GuestPermission, PermissionsService } from './permissions.service';
+import { ConfigModule } from '@nestjs/config';
+import appConfigMock from '../config/app.config.mock';
 
 describe('PermissionsService', () => {
   let permissionsService: PermissionsService;
@@ -35,7 +37,16 @@ describe('PermissionsService', () => {
   beforeAll(async () => {
     const module: TestingModule = await Test.createTestingModule({
       providers: [PermissionsService],
-      imports: [PermissionsModule, UsersModule, LoggerModule, NotesModule],
+      imports: [
+        PermissionsModule,
+        UsersModule,
+        LoggerModule,
+        NotesModule,
+        ConfigModule.forRoot({
+          isGlobal: true,
+          load: [appConfigMock],
+        }),
+      ],
     })
       .overrideProvider(getRepositoryToken(User))
       .useValue({})
diff --git a/src/revisions/revisions.module.ts b/src/revisions/revisions.module.ts
index 80b240523..7ecc61491 100644
--- a/src/revisions/revisions.module.ts
+++ b/src/revisions/revisions.module.ts
@@ -11,12 +11,14 @@ import { NotesModule } from '../notes/notes.module';
 import { Authorship } from './authorship.entity';
 import { Revision } from './revision.entity';
 import { RevisionsService } from './revisions.service';
+import { ConfigModule } from '@nestjs/config';
 
 @Module({
   imports: [
     TypeOrmModule.forFeature([Revision, Authorship]),
     forwardRef(() => NotesModule),
     LoggerModule,
+    ConfigModule,
   ],
   providers: [RevisionsService],
   exports: [RevisionsService],
diff --git a/src/revisions/revisions.service.spec.ts b/src/revisions/revisions.service.spec.ts
index fe82a346f..ada09533f 100644
--- a/src/revisions/revisions.service.spec.ts
+++ b/src/revisions/revisions.service.spec.ts
@@ -20,6 +20,8 @@ import { Tag } from '../notes/tag.entity';
 import { NoteGroupPermission } from '../permissions/note-group-permission.entity';
 import { NoteUserPermission } from '../permissions/note-user-permission.entity';
 import { Group } from '../groups/group.entity';
+import { ConfigModule } from '@nestjs/config';
+import appConfigMock from '../config/app.config.mock';
 
 describe('RevisionsService', () => {
   let service: RevisionsService;
@@ -33,7 +35,14 @@ describe('RevisionsService', () => {
           useValue: {},
         },
       ],
-      imports: [NotesModule, LoggerModule],
+      imports: [
+        NotesModule,
+        LoggerModule,
+        ConfigModule.forRoot({
+          isGlobal: true,
+          load: [appConfigMock],
+        }),
+      ],
     })
       .overrideProvider(getRepositoryToken(Authorship))
       .useValue({})
diff --git a/test/public-api/me.e2e-spec.ts b/test/public-api/me.e2e-spec.ts
index aa4733080..a26488bc9 100644
--- a/test/public-api/me.e2e-spec.ts
+++ b/test/public-api/me.e2e-spec.ts
@@ -31,6 +31,7 @@ import { UsersModule } from '../../src/users/users.module';
 import { HistoryModule } from '../../src/history/history.module';
 import { ConfigModule } from '@nestjs/config';
 import mediaConfigMock from '../../src/config/media.config.mock';
+import appConfigMock from '../../src/config/app.config.mock';
 import { User } from '../../src/users/user.entity';
 
 // TODO Tests have to be reworked using UserService functions
@@ -47,7 +48,7 @@ describe('Notes', () => {
       imports: [
         ConfigModule.forRoot({
           isGlobal: true,
-          load: [mediaConfigMock],
+          load: [mediaConfigMock, appConfigMock],
         }),
         PublicApiModule,
         NotesModule,
diff --git a/test/public-api/media.e2e-spec.ts b/test/public-api/media.e2e-spec.ts
index 89843b1cf..0c5d67ad1 100644
--- a/test/public-api/media.e2e-spec.ts
+++ b/test/public-api/media.e2e-spec.ts
@@ -17,6 +17,7 @@ import { promises as fs } from 'fs';
 import * as request from 'supertest';
 import { PublicApiModule } from '../../src/api/public/public-api.module';
 import mediaConfigMock from '../../src/config/media.config.mock';
+import appConfigMock from '../../src/config/app.config.mock';
 import { GroupsModule } from '../../src/groups/groups.module';
 import { LoggerModule } from '../../src/logger/logger.module';
 import { NestConsoleLoggerService } from '../../src/logger/nest-console-logger.service';
@@ -40,7 +41,7 @@ describe('Notes', () => {
       imports: [
         ConfigModule.forRoot({
           isGlobal: true,
-          load: [mediaConfigMock],
+          load: [mediaConfigMock, appConfigMock],
         }),
         PublicApiModule,
         MediaModule,
diff --git a/test/public-api/notes.e2e-spec.ts b/test/public-api/notes.e2e-spec.ts
index 4aaa18ef1..04fbc174d 100644
--- a/test/public-api/notes.e2e-spec.ts
+++ b/test/public-api/notes.e2e-spec.ts
@@ -16,6 +16,7 @@ import { TypeOrmModule } from '@nestjs/typeorm';
 import * as request from 'supertest';
 import { PublicApiModule } from '../../src/api/public/public-api.module';
 import mediaConfigMock from '../../src/config/media.config.mock';
+import appConfigMock from '../../src/config/app.config.mock';
 import { NotInDBError } from '../../src/errors/errors';
 import { GroupsModule } from '../../src/groups/groups.module';
 import { LoggerModule } from '../../src/logger/logger.module';
@@ -40,7 +41,7 @@ describe('Notes', () => {
       imports: [
         ConfigModule.forRoot({
           isGlobal: true,
-          load: [mediaConfigMock],
+          load: [mediaConfigMock, appConfigMock],
         }),
         PublicApiModule,
         NotesModule,