diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/member/auth/AuthRepository.kt b/src/main/kotlin/kr/co/vividnext/sodalive/member/auth/AuthRepository.kt
index 7f6b9f94..0da863e1 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/member/auth/AuthRepository.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/member/auth/AuthRepository.kt
@@ -15,7 +15,7 @@ interface AuthQueryRepository {
     fun getMemberIdsByDi(di: String): List<Long>
     fun getMemberIdsByNameAndBirthAndDiAndGender(name: String, birth: String, di: String, gender: Int): List<Long>
     fun getAuthIdByMemberId(memberId: Long): Long?
-    fun getActiveMemberIdsByDi(di: String): List<Long>
+    fun getActiveMemberIdsByNameAndBirthAndDiAndUniqueCi(name: String, birth: String, di: String, uniqueCi: String): List<Long>
 }
 
 class AuthQueryRepositoryImpl(private val queryFactory: JPAQueryFactory) : AuthQueryRepository {
@@ -60,13 +60,21 @@ class AuthQueryRepositoryImpl(private val queryFactory: JPAQueryFactory) : AuthQ
             .fetchFirst()
     }
 
-    override fun getActiveMemberIdsByDi(di: String): List<Long> {
+    override fun getActiveMemberIdsByNameAndBirthAndDiAndUniqueCi(
+        name: String,
+        birth: String,
+        di: String,
+        uniqueCi: String
+    ): List<Long> {
         return queryFactory
             .select(member.id)
             .from(member)
             .leftJoin(member.auth, auth)
             .where(
-                auth.di.eq(di)
+                auth.name.eq(name)
+                    .and(auth.birth.eq(birth))
+                    .and(auth.di.eq(di))
+                    .and(auth.uniqueCi.eq(uniqueCi))
                     .and(member.isActive.isTrue)
             )
             .fetch()
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/member/auth/AuthService.kt b/src/main/kotlin/kr/co/vividnext/sodalive/member/auth/AuthService.kt
index 16800e38..d8366d80 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/member/auth/AuthService.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/member/auth/AuthService.kt
@@ -81,7 +81,12 @@ class AuthService(
 
     @Transactional
     fun authenticate(certificate: AuthVerifyCertificate, memberId: Long): AuthResponse {
-        val memberIds = repository.getActiveMemberIdsByDi(di = certificate.di)
+        val memberIds = repository.getActiveMemberIdsByNameAndBirthAndDiAndUniqueCi(
+            name = certificate.name,
+            birth = certificate.birth,
+            di = certificate.di,
+            uniqueCi = certificate.unique
+        )
         if (memberIds.size >= 3) {
             val message = messageSource.getMessage("member.auth.max_accounts", langContext.lang) ?: ""
             throw SodaException(