diff --git a/backup/util/helper/backup_anonymizer_helper.class.php b/backup/util/helper/backup_anonymizer_helper.class.php
index 04a9d2da074..f3b5925a142 100644
--- a/backup/util/helper/backup_anonymizer_helper.class.php
+++ b/backup/util/helper/backup_anonymizer_helper.class.php
@@ -167,4 +167,48 @@ class backup_anonymizer_helper {
     public static function process_user_imagealt($value) {
         return ''; // No user imagealt
     }
+
+    /**
+     * Anonymises user's phonetic name field
+     * @param string $value value of the user field
+     * @return string anonymised phonetic name
+     */
+    public static function process_user_firstnamephonetic($value) {
+        static $counter = 0;
+        $counter++;
+        return 'anonfirstnamephonetic' . $counter; // Just a counter.
+    }
+
+    /**
+     * Anonymises user's phonetic last name field
+     * @param string $value value of the user field
+     * @return string anonymised last phonetic name
+     */
+    public static function process_user_lastnamephonetic($value) {
+        static $counter = 0;
+        $counter++;
+        return 'anonlastnamephonetic' . $counter; // Just a counter.
+    }
+
+    /**
+     * Anonymises user's middle name field
+     * @param string $value value of the user field
+     * @return string anonymised middle name
+     */
+    public static function process_user_middlename($value) {
+        static $counter = 0;
+        $counter++;
+        return 'anonmiddlename' . $counter; // Just a counter.
+    }
+
+    /**
+     * Anonymises user's alternate name field
+     * @param string $value value of the user field
+     * @return string anonymised alternate name
+     */
+    public static function process_user_alternatename($value) {
+        static $counter = 0;
+        $counter++;
+        return 'anonalternatename' . $counter; // Just a counter.
+    }
 }