diff --git a/spring-cloud/spring-cloud-bootstrap/application-config/discovery.properties b/spring-cloud/spring-cloud-bootstrap/application-config/discovery.properties
index 7f3df86c7e..0df7988f69 100644
--- a/spring-cloud/spring-cloud-bootstrap/application-config/discovery.properties
+++ b/spring-cloud/spring-cloud-bootstrap/application-config/discovery.properties
@@ -3,6 +3,6 @@ server.port=8082
 
 eureka.instance.hostname=localhost
 
-eureka.client.serviceUrl.defaultZone=http://localhost:8082/eureka/
+eureka.client.serviceUrl.defaultZone=http://disc_discUser:discPassword@localhost:8082/eureka/
 eureka.client.register-with-eureka=false
 eureka.client.fetch-registry=false
diff --git a/spring-cloud/spring-cloud-bootstrap/application-config/gateway.properties b/spring-cloud/spring-cloud-bootstrap/application-config/gateway.properties
index 77faec8421..fc04c5fc23 100644
--- a/spring-cloud/spring-cloud-bootstrap/application-config/gateway.properties
+++ b/spring-cloud/spring-cloud-bootstrap/application-config/gateway.properties
@@ -3,7 +3,7 @@ server.port=8080
 
 eureka.client.region = default
 eureka.client.registryFetchIntervalSeconds = 5
-eureka.client.serviceUrl.defaultZone=http://localhost:8082/eureka/
+eureka.client.serviceUrl.defaultZone=http://disc_gatewayUser:gatewayPassword@localhost:8082/eureka/
 
 zuul.routes.resource.path=/resource/**
 hystrix.command.resource.execution.isolation.thread.timeoutInMilliseconds: 5000
diff --git a/spring-cloud/spring-cloud-bootstrap/application-config/resource.properties b/spring-cloud/spring-cloud-bootstrap/application-config/resource.properties
index 4e6cf3817c..8df874a104 100644
--- a/spring-cloud/spring-cloud-bootstrap/application-config/resource.properties
+++ b/spring-cloud/spring-cloud-bootstrap/application-config/resource.properties
@@ -5,4 +5,4 @@ resource.returnString=hello cloud
 
 eureka.client.region = default
 eureka.client.registryFetchIntervalSeconds = 5
-eureka.client.serviceUrl.defaultZone=http://localhost:8082/eureka/
+eureka.client.serviceUrl.defaultZone=http://disc_resourceUser:resourcePassword@localhost:8082/eureka/
diff --git a/spring-cloud/spring-cloud-bootstrap/config/pom.xml b/spring-cloud/spring-cloud-bootstrap/config/pom.xml
index 0cb217acfb..9ba018733a 100644
--- a/spring-cloud/spring-cloud-bootstrap/config/pom.xml
+++ b/spring-cloud/spring-cloud-bootstrap/config/pom.xml
@@ -28,6 +28,10 @@
             <artifactId>spring-boot-starter-test</artifactId>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-security</artifactId>
+        </dependency>
     </dependencies>
 
     <dependencyManagement>
diff --git a/spring-cloud/spring-cloud-bootstrap/config/src/main/java/com/baeldung/spring/cloud/integration/config/SecurityConfig.java b/spring-cloud/spring-cloud-bootstrap/config/src/main/java/com/baeldung/spring/cloud/integration/config/SecurityConfig.java
new file mode 100644
index 0000000000..5392709fc8
--- /dev/null
+++ b/spring-cloud/spring-cloud-bootstrap/config/src/main/java/com/baeldung/spring/cloud/integration/config/SecurityConfig.java
@@ -0,0 +1,25 @@
+package com.baeldung.spring.cloud.integration.config;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
+import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
+import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
+
+@Configuration
+@EnableWebSecurity
+public class SecurityConfig extends WebSecurityConfigurerAdapter {
+
+    @Autowired
+    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception{
+        auth.inMemoryAuthentication()
+                .withUser("config_discUser")
+                .password("discPassword")
+            .and()
+                .withUser("config_gatewayUser")
+                .password("gatewayPassword")
+            .and()
+                .withUser("config_resourceUser")
+                .password("resourcePassword");
+    }
+}
diff --git a/spring-cloud/spring-cloud-bootstrap/config/src/main/resources/application.properties b/spring-cloud/spring-cloud-bootstrap/config/src/main/resources/application.properties
index 6f614d0690..ddbe33a3f4 100644
--- a/spring-cloud/spring-cloud-bootstrap/config/src/main/resources/application.properties
+++ b/spring-cloud/spring-cloud-bootstrap/config/src/main/resources/application.properties
@@ -5,4 +5,4 @@ spring.cloud.config.server.git.uri=file:///${user.home}/application-config
 
 eureka.client.region = default
 eureka.client.registryFetchIntervalSeconds = 5
-eureka.client.serviceUrl.defaultZone=http://localhost:8082/eureka
\ No newline at end of file
+eureka.client.serviceUrl.defaultZone=disc_configUser:configPassword@http://localhost:8082/eureka/
\ No newline at end of file
diff --git a/spring-cloud/spring-cloud-bootstrap/discovery/pom.xml b/spring-cloud/spring-cloud-bootstrap/discovery/pom.xml
index ee7c589549..3b23adbf54 100644
--- a/spring-cloud/spring-cloud-bootstrap/discovery/pom.xml
+++ b/spring-cloud/spring-cloud-bootstrap/discovery/pom.xml
@@ -28,6 +28,10 @@
             <artifactId>spring-boot-starter-test</artifactId>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-security</artifactId>
+        </dependency>
     </dependencies>
 
     <dependencyManagement>
diff --git a/spring-cloud/spring-cloud-bootstrap/discovery/src/main/java/com/baeldung/spring/cloud/integration/discovery/SecurityConfig.java b/spring-cloud/spring-cloud-bootstrap/discovery/src/main/java/com/baeldung/spring/cloud/integration/discovery/SecurityConfig.java
new file mode 100644
index 0000000000..7c245d3ad3
--- /dev/null
+++ b/spring-cloud/spring-cloud-bootstrap/discovery/src/main/java/com/baeldung/spring/cloud/integration/discovery/SecurityConfig.java
@@ -0,0 +1,28 @@
+package com.baeldung.spring.cloud.integration.discovery;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
+import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
+import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
+
+@Configuration
+@EnableWebSecurity
+public class SecurityConfig extends WebSecurityConfigurerAdapter {
+
+    @Autowired
+    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception{
+        auth.inMemoryAuthentication()
+                .withUser("disc_configUser")
+                .password("configPassword")
+            .and()
+                .withUser("disc_discUser")
+                .password("discPassword")
+            .and()
+                .withUser("disc_gatewayUser")
+                .password("gatewayPassword")
+            .and()
+                .withUser("disc_resourceUser")
+                .password("resourcePassword");
+    }
+}
diff --git a/spring-cloud/spring-cloud-bootstrap/discovery/src/main/resources/bootstrap.properties b/spring-cloud/spring-cloud-bootstrap/discovery/src/main/resources/bootstrap.properties
index ca9d59c9ed..2a8381a58d 100644
--- a/spring-cloud/spring-cloud-bootstrap/discovery/src/main/resources/bootstrap.properties
+++ b/spring-cloud/spring-cloud-bootstrap/discovery/src/main/resources/bootstrap.properties
@@ -1,2 +1,4 @@
 spring.cloud.config.name=discovery
-spring.cloud.config.uri=http://localhost:8081
\ No newline at end of file
+spring.cloud.config.uri=http://localhost:8081
+spring.cloud.config.username=config_discUser
+spring.cloud.config.password=discPassword
\ No newline at end of file
diff --git a/spring-cloud/spring-cloud-bootstrap/gateway/src/main/resources/bootstrap.properties b/spring-cloud/spring-cloud-bootstrap/gateway/src/main/resources/bootstrap.properties
index 9610d72675..6c866f51f2 100644
--- a/spring-cloud/spring-cloud-bootstrap/gateway/src/main/resources/bootstrap.properties
+++ b/spring-cloud/spring-cloud-bootstrap/gateway/src/main/resources/bootstrap.properties
@@ -1,5 +1,7 @@
 spring.cloud.config.name=gateway
 spring.cloud.config.discovery.service-id=config
 spring.cloud.config.discovery.enabled=true
+spring.cloud.config.username=config_gatewayUser
+spring.cloud.config.password=gatewayPassword
 
 eureka.client.serviceUrl.defaultZone=http://localhost:8082/eureka/
\ No newline at end of file
diff --git a/spring-cloud/spring-cloud-bootstrap/resource/src/main/resources/bootstrap.properties b/spring-cloud/spring-cloud-bootstrap/resource/src/main/resources/bootstrap.properties
index 3c88a0b520..b023855432 100644
--- a/spring-cloud/spring-cloud-bootstrap/resource/src/main/resources/bootstrap.properties
+++ b/spring-cloud/spring-cloud-bootstrap/resource/src/main/resources/bootstrap.properties
@@ -1,5 +1,7 @@
 spring.cloud.config.name=resource
 spring.cloud.config.discovery.service-id=config
 spring.cloud.config.discovery.enabled=true
+spring.cloud.config.username=config_resourceUser
+spring.cloud.config.password=resourcePassword
 
 eureka.client.serviceUrl.defaultZone=http://localhost:8082/eureka/
\ No newline at end of file