diff --git a/ci/fih_test_docker/execute_test.sh b/ci/fih_test_docker/execute_test.sh
index b013a09..a110837 100755
--- a/ci/fih_test_docker/execute_test.sh
+++ b/ci/fih_test_docker/execute_test.sh
@@ -1,6 +1,6 @@
 #!/bin/bash -x
 
-# Copyright (c) 2020-2022 Arm Limited
+# Copyright (c) 2020-2023 Arm Limited
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -63,3 +63,4 @@
 echo "    - DAMAGE_TYPE: $DAMAGE_TYPE"
 
 python3 $MCUBOOT_PATH/ci/fih_test_docker/generate_test_report.py fih_test_output.yaml
+python3 $MCUBOOT_PATH/ci/fih_test_docker/validate_output.py fih_test_output.yaml $SKIP_SIZE $FIH_LEVEL
diff --git a/ci/fih_test_docker/generate_test_report.py b/ci/fih_test_docker/generate_test_report.py
index 0eb13b4..2d68949 100644
--- a/ci/fih_test_docker/generate_test_report.py
+++ b/ci/fih_test_docker/generate_test_report.py
@@ -1,4 +1,4 @@
-# Copyright (c) 2020 Arm Limited
+# Copyright (c) 2020-2023 Arm Limited
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -13,47 +13,12 @@
 # limitations under the License.
 
 import argparse
-import yaml
-import collections
-
-CATEGORIES = {
-        'TOTAL': 'Total tests run',
-        'SUCCESS': 'Tests executed successfully',
-        'FAILED': 'Tests failed to execute successfully',
-        # the execution never reached the address
-        'ADDRES_NOEXEC': 'Address was not executed',
-        # The address was successfully skipped by the debugger
-        'SKIPPED': 'Address was skipped',
-        'NO_BOOT': 'System not booted (desired behaviour)',
-        'BOOT': 'System booted (undesired behaviour)'
-}
+from utils import CATEGORIES, parse_yaml_file
 
 
 def print_results(results):
-    test_stats = collections.Counter()
-    failed_boot_last_lines = collections.Counter()
-    exec_fail_reasons = collections.Counter()
 
-    for test in results:
-        test = test["skip_test"]
-
-        test_stats.update([CATEGORIES['TOTAL']])
-
-        if test["test_exec_ok"]:
-            test_stats.update([CATEGORIES['SUCCESS']])
-
-            if "skipped" in test.keys() and not test["skipped"]:
-                # The debugger didn't stop at this address
-                test_stats.update([CATEGORIES['ADDRES_NOEXEC']])
-                continue
-
-            if test["boot"]:
-                test_stats.update([CATEGORIES['BOOT']])
-                continue
-
-            failed_boot_last_lines.update([test["last_line"]])
-        else:
-            exec_fail_reasons.update([test["test_exec_fail_reason"]])
+    test_stats, failed_boot_last_lines, exec_fail_reasons = results
 
     print("{:s}: {:d}.".format(CATEGORIES['TOTAL'], test_stats[CATEGORIES['TOTAL']]))
     print("{:s} ({:d}):".format(CATEGORIES['SUCCESS'], test_stats[CATEGORIES['SUCCESS']]))
@@ -74,14 +39,8 @@
     parser.add_argument('filename', help='yaml file to process')
 
     args = parser.parse_args()
-
-    with open(args.filename) as output_yaml_file:
-        results = yaml.safe_load(output_yaml_file)
-
-        if results:
-            print_results(results)
-        else:
-            print("Failed to parse output yaml file.")
+    results = parse_yaml_file(args.filename)
+    print_results(results)
 
 
 if __name__ == "__main__":
diff --git a/ci/fih_test_docker/utils.py b/ci/fih_test_docker/utils.py
new file mode 100644
index 0000000..cd58f28
--- /dev/null
+++ b/ci/fih_test_docker/utils.py
@@ -0,0 +1,63 @@
+# Copyright (c) 2023 Arm Limited
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import collections
+import yaml
+
+CATEGORIES = {
+        'TOTAL': 'Total tests run',
+        'SUCCESS': 'Tests executed successfully',
+        'FAILED': 'Tests failed to execute successfully',
+        # the execution never reached the address
+        'ADDRES_NOEXEC': 'Address was not executed',
+        # The address was successfully skipped by the debugger
+        'SKIPPED': 'Address was skipped',
+        'NO_BOOT': 'System not booted (desired behaviour)',
+        'BOOT': 'System booted (undesired behaviour)'
+}
+
+
+def parse_yaml_file(filepath):
+    with open(filepath) as f:
+        results = yaml.safe_load(f)
+
+    if not results:
+        raise ValueError("Failed to parse output yaml file.")
+
+    test_stats = collections.Counter()
+    failed_boot_last_lines = collections.Counter()
+    exec_fail_reasons = collections.Counter()
+
+    for test in results:
+        test = test["skip_test"]
+
+        test_stats.update([CATEGORIES['TOTAL']])
+
+        if test["test_exec_ok"]:
+            test_stats.update([CATEGORIES['SUCCESS']])
+
+            if "skipped" in test.keys() and not test["skipped"]:
+                # The debugger didn't stop at this address
+                test_stats.update([CATEGORIES['ADDRES_NOEXEC']])
+                continue
+
+            if test["boot"]:
+                test_stats.update([CATEGORIES['BOOT']])
+                continue
+
+            failed_boot_last_lines.update([test["last_line"]])
+        else:
+            exec_fail_reasons.update([test["test_exec_fail_reason"]])
+
+    return test_stats, failed_boot_last_lines, exec_fail_reasons
diff --git a/ci/fih_test_docker/validate_output.py b/ci/fih_test_docker/validate_output.py
new file mode 100644
index 0000000..7c334ba
--- /dev/null
+++ b/ci/fih_test_docker/validate_output.py
@@ -0,0 +1,39 @@
+# Copyright (c) 2023 Arm Limited
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import argparse
+from utils import CATEGORIES, parse_yaml_file
+
+
+def validate_output(test_stats, skip_size, fih_level):
+    if (test_stats[CATEGORIES['BOOT']] > 0
+       and skip_size == "2,4,6" and fih_level == "MEDIUM"):
+        raise ValueError("The number of sucessful boots was more than zero")
+
+
+def main():
+    parser = argparse.ArgumentParser(description='''Process a FIH test output yaml file,
+     and validate no sucessfull boots have happened''')
+    parser.add_argument('filename', help='yaml file to process')
+    parser.add_argument('skip_size', help='instruction skip size')
+    parser.add_argument('fih_level', nargs="?",
+                        help='fault injection hardening level')
+
+    args = parser.parse_args()
+    test_stats = parse_yaml_file(args.filename)[0]
+    validate_output(test_stats, args.skip_size, args.fih_level)
+
+
+if __name__ == "__main__":
+    main()