diff --git a/core/src/main/java/org/springframework/security/core/userdetails/UserDetails.java b/core/src/main/java/org/springframework/security/core/userdetails/UserDetails.java
index 664725631e2..bab08c5a2ac 100644
--- a/core/src/main/java/org/springframework/security/core/userdetails/UserDetails.java
+++ b/core/src/main/java/org/springframework/security/core/userdetails/UserDetails.java
@@ -67,14 +67,18 @@ public interface UserDetails extends Serializable {
 	 * @return <code>true</code> if the user's account is valid (ie non-expired),
 	 * <code>false</code> if no longer valid (ie expired)
 	 */
-	boolean isAccountNonExpired();
+	default boolean isAccountNonExpired() {
+		return true;
+	}
 
 	/**
 	 * Indicates whether the user is locked or unlocked. A locked user cannot be
 	 * authenticated.
 	 * @return <code>true</code> if the user is not locked, <code>false</code> otherwise
 	 */
-	boolean isAccountNonLocked();
+	default boolean isAccountNonLocked() {
+		return true;
+	}
 
 	/**
 	 * Indicates whether the user's credentials (password) has expired. Expired
@@ -82,13 +86,17 @@ public interface UserDetails extends Serializable {
 	 * @return <code>true</code> if the user's credentials are valid (ie non-expired),
 	 * <code>false</code> if no longer valid (ie expired)
 	 */
-	boolean isCredentialsNonExpired();
+	default boolean isCredentialsNonExpired() {
+		return true;
+	}
 
 	/**
 	 * Indicates whether the user is enabled or disabled. A disabled user cannot be
 	 * authenticated.
 	 * @return <code>true</code> if the user is enabled, <code>false</code> otherwise
 	 */
-	boolean isEnabled();
+	default boolean isEnabled() {
+		return true;
+	}
 
 }
diff --git a/test/src/test/java/org/springframework/security/test/context/showcase/CustomUserDetails.java b/test/src/test/java/org/springframework/security/test/context/showcase/CustomUserDetails.java
index ccbc7a00f0f..6bdb82cbadb 100644
--- a/test/src/test/java/org/springframework/security/test/context/showcase/CustomUserDetails.java
+++ b/test/src/test/java/org/springframework/security/test/context/showcase/CustomUserDetails.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2016 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -54,26 +54,6 @@ public String getUsername() {
 		return this.username;
 	}
 
-	@Override
-	public boolean isAccountNonExpired() {
-		return true;
-	}
-
-	@Override
-	public boolean isAccountNonLocked() {
-		return true;
-	}
-
-	@Override
-	public boolean isCredentialsNonExpired() {
-		return true;
-	}
-
-	@Override
-	public boolean isEnabled() {
-		return true;
-	}
-
 	@Override
 	public String toString() {
 		return "CustomUserDetails{" + "username='" + this.username + '\'' + '}';