diff --git a/src/offat/tester/post_test_processor.py b/src/offat/tester/post_test_processor.py
index f7b6ceb..af49eb4 100644
--- a/src/offat/tester/post_test_processor.py
+++ b/src/offat/tester/post_test_processor.py
@@ -97,6 +97,10 @@ def detect_exposure(data: str) -> dict:
             for pattern_name, pattern in sensitive_data_regex_patterns.items():
                 matches = findall(pattern, data)
                 if matches:
+                    if isinstance(matches, list) and isinstance(matches[0], tuple):
+                        matches = set.union(*[set(match_tuple) for match_tuple in matches])
+                        matches.discard('')
+                        matches = list(matches)
                     detected_exposures[pattern_name] = matches
             return detected_exposures