diff --git a/src/services/identity/service.rs b/src/services/identity/service.rs
index 979f9ec..7237c78 100644
--- a/src/services/identity/service.rs
+++ b/src/services/identity/service.rs
@@ -64,6 +64,7 @@ impl Service<'_> {
       self.check_nickname_for_duplication(),
       self.captcha(),
       self.signin(),
+      self.signin_without_security_code(),
     )
     .map(|_| ())
   }
@@ -678,4 +679,212 @@ impl Service<'_> {
 
     Ok(())
   }
+
+  async fn signin_without_security_code(&self) -> Result<(), Box<dyn std::error::Error>> {
+    let s = self
+      .connection_broker
+      .queue_subscribe(
+        bpr::ss::identity::SUBJECT_SIGNIN_WITHOUT_SECURITY_CODE,
+        self.queue_broker.as_str(),
+      )
+      .await?;
+
+    while let Some(message) = s.next().await {
+      if let Err(e) = async {
+        let req =
+          bpr::ss::identity::SigninWithoutSecurityCodeRequest::decode(message.data.as_slice())
+            .map_err(|e| {
+              bcr::error::rpc::Error::InvalidRequest(bcr::error::rpc::InvalidRequest {
+                message: format!("invalid request: {}", e),
+              })
+            })?;
+
+        let client = match req.client {
+          Some(c) => c,
+          None => {
+            return Err(bcr::error::rpc::Error::InvalidParams(
+              bcr::error::rpc::InvalidParams {
+                message: "invalid client information".to_string(),
+                detail: bcr::error::rpc::InvalidParamsDetail {
+                  location: "request".to_string(),
+                  param: "client".to_string(),
+                  value: "".to_string(),
+                  error_type: bcr::error::rpc::InvalidParamsType::Required,
+                  message: "".to_string(),
+                },
+              },
+            ));
+          }
+        };
+        let request = match req.request {
+          Some(r) => r,
+          None => {
+            return Err(bcr::error::rpc::Error::InvalidParams(
+              bcr::error::rpc::InvalidParams {
+                message: "invalid request information".to_string(),
+                detail: bcr::error::rpc::InvalidParamsDetail {
+                  location: "request".to_string(),
+                  param: "request".to_string(),
+                  value: "".to_string(),
+                  error_type: bcr::error::rpc::InvalidParamsType::Required,
+                  message: "".to_string(),
+                },
+              },
+            ));
+          }
+        };
+        let conn = self.pool.get().map_err(|e| {
+          bcr::error::rpc::Error::Server(bcr::error::rpc::Server {
+            code: bpr::protobuf::rpc::Error::SERVER_00,
+            message: format!("server {}", e),
+            data: None,
+          })
+        })?;
+
+        let username = request.username;
+        let password = request.password;
+
+        let m = match self
+          .member_repository
+          .select_by_username(&conn, &username)
+          .map_err(|e| {
+            bcr::error::rpc::Error::Server(bcr::error::rpc::Server {
+              code: bpr::protobuf::rpc::Error::SERVER_00,
+              message: format!("server {}", e),
+              data: None,
+            })
+          })? {
+          Some(m) => m,
+          None => {
+            return Err(bcr::error::rpc::Error::InvalidParams(
+              bcr::error::rpc::InvalidParams {
+                message: "invalid username".to_string(),
+                detail: bcr::error::rpc::InvalidParamsDetail {
+                  location: "request".to_string(),
+                  param: "username".to_string(),
+                  value: username,
+                  error_type: bcr::error::rpc::InvalidParamsType::None,
+                  message: "".to_string(),
+                },
+              },
+            ));
+          }
+        };
+
+        if !(argon2::verify_encoded(&m.password, password.as_bytes()).map_err(|e| {
+          bcr::error::rpc::Error::InvalidParams(bcr::error::rpc::InvalidParams {
+            message: "invalid password".to_string(),
+            detail: bcr::error::rpc::InvalidParamsDetail {
+              location: "request".to_string(),
+              param: "password".to_string(),
+              value: password.clone(),
+              error_type: bcr::error::rpc::InvalidParamsType::None,
+              message: e.to_string(),
+            },
+          })
+        })?) {
+          return Err(bcr::error::rpc::Error::InvalidParams(
+            bcr::error::rpc::InvalidParams {
+              message: "invalid password".to_string(),
+              detail: bcr::error::rpc::InvalidParamsDetail {
+                location: "request".to_string(),
+                param: "password".to_string(),
+                value: password.clone(),
+                error_type: bcr::error::rpc::InvalidParamsType::EqualsTo,
+                message: "".to_string(),
+              },
+            },
+          ));
+        }
+
+        let _s = self.check_site(&conn, client.site_url.clone(), m.site_id)?;
+
+        let expires_at = (chrono::Utc::now() + chrono::Duration::minutes(30)).timestamp();
+        let session = self
+          .member_session_repository
+          .insert(
+            &conn,
+            &repositories::member_session::models::NewMemberSession {
+              member_id: m.id,
+              ip: client.client_ip.clone(),
+              expires_at,
+            },
+          )
+          .map_err(|e| {
+            bcr::error::rpc::Error::Server(bcr::error::rpc::Server {
+              code: bpr::protobuf::rpc::Error::SERVER_00,
+              message: format!("server {}", e),
+              data: None,
+            })
+          })?;
+
+        let access_token = self
+          .identity_composition
+          .get_token("Beteran".to_string(), session.id.to_string())
+          .map_err(|e| {
+            bcr::error::rpc::Error::Server(bcr::error::rpc::Server {
+              code: bpr::protobuf::rpc::Error::SERVER_00,
+              message: format!("server {}", e),
+              data: None,
+            })
+          })?;
+
+        self
+          .connection_broker
+          .publish(
+            bpr::ss::identity::EVENT_SUBJECT_AFTER_SIGNIN,
+            bpr::ss::identity::AfterSigninEvent {
+              client: Some(client),
+              event: Some(bpr::ss::identity::after_signin_event::Event {
+                member: Some(bpr::models::member::Member::from(&m)),
+              }),
+            }
+            .encode_to_vec(),
+          )
+          .await
+          .map_err(|e| {
+            bcr::error::rpc::Error::Server(bcr::error::rpc::Server {
+              code: bpr::protobuf::rpc::Error::SERVER_00,
+              message: format!("server {}", e),
+              data: None,
+            })
+          })?;
+
+        message
+          .respond(
+            bpr::ss::identity::SigninWithoutSecurityCodeResponse {
+              error: None,
+              result: Some(
+                bpr::ss::identity::signin_without_security_code_response::Result { access_token },
+              ),
+            }
+            .encode_to_vec(),
+          )
+          .await
+          .map_err(|e| {
+            bcr::error::rpc::Error::Server(bcr::error::rpc::Server {
+              code: bpr::protobuf::rpc::Error::SERVER_00,
+              message: format!("server {}", e),
+              data: None,
+            })
+          })?;
+
+        Ok::<(), bcr::error::rpc::Error>(())
+      }
+      .await
+      {
+        message
+          .respond(
+            bpr::ss::identity::SigninWithoutSecurityCodeResponse {
+              error: Some(bpr::protobuf::rpc::Error::from(e)),
+              result: None,
+            }
+            .encode_to_vec(),
+          )
+          .await?;
+      }
+    }
+
+    Ok(())
+  }
 }