diff --git a/src/main/java/io/wisoft/prepair/prepair_api/global/exception/ErrorCode.java b/src/main/java/io/wisoft/prepair/prepair_api/global/exception/ErrorCode.java
index 6baff07..acfc775 100644
--- a/src/main/java/io/wisoft/prepair/prepair_api/global/exception/ErrorCode.java
+++ b/src/main/java/io/wisoft/prepair/prepair_api/global/exception/ErrorCode.java
@@ -23,6 +23,9 @@ public enum ErrorCode {
     RESOURCE_NOT_FOUND(HttpStatus.NOT_FOUND, "리소스를 찾을 수 없습니다."),
     DUPLICATE_RESOURCE(HttpStatus.CONFLICT, "이미 존재하는 리소스입니다."),
 
+    // Session
+    SESSION_NOT_FOUND(HttpStatus.NOT_FOUND, "세션을 찾을 수 없습니다."),
+
     // Question
     QUESTION_NOT_FOUND(HttpStatus.NOT_FOUND, "질문을 찾을 수 없습니다."),
 
diff --git a/src/main/java/io/wisoft/prepair/prepair_api/repository/SessionRepository.java b/src/main/java/io/wisoft/prepair/prepair_api/repository/SessionRepository.java
index e3b4d37..c33a5d6 100644
--- a/src/main/java/io/wisoft/prepair/prepair_api/repository/SessionRepository.java
+++ b/src/main/java/io/wisoft/prepair/prepair_api/repository/SessionRepository.java
@@ -5,5 +5,4 @@
 import org.springframework.data.jpa.repository.JpaRepository;
 
 public interface SessionRepository extends JpaRepository<InterviewSession, UUID> {
-    boolean existsByIdAndMemberId(UUID id, UUID memberId);
 }
\ No newline at end of file
diff --git a/src/main/java/io/wisoft/prepair/prepair_api/service/question/QuestionService.java b/src/main/java/io/wisoft/prepair/prepair_api/service/question/QuestionService.java
index d5fb26d..a459d8a 100644
--- a/src/main/java/io/wisoft/prepair/prepair_api/service/question/QuestionService.java
+++ b/src/main/java/io/wisoft/prepair/prepair_api/service/question/QuestionService.java
@@ -80,7 +80,9 @@ public List<InterviewQuestion> generateVideoQuestions(UUID memberId, VideoInterv
     }
 
     public void validateSessionOwner(UUID sessionId, UUID memberId) {
-        if(!sessionRepository.existsByIdAndMemberId(sessionId, memberId)) {
+        InterviewSession session = sessionRepository.findById(sessionId)
+                .orElseThrow(() -> new BusinessException(ErrorCode.SESSION_NOT_FOUND));
+        if (!session.getMemberId().equals(memberId)) {
             throw new BusinessException(ErrorCode.FORBIDDEN);
         }
     }