diff --git a/Ecdar-ProtoBuf b/Ecdar-ProtoBuf
index 285004c..2f2fdd7 160000
--- a/Ecdar-ProtoBuf
+++ b/Ecdar-ProtoBuf
@@ -1 +1 @@
-Subproject commit 285004c6a2b310f82a1a6c045933246046499e98
+Subproject commit 2f2fdd79d6564c1233f2e92173098b1c4aece994
diff --git a/src/controllers/controller_impls/session_controller.rs b/src/controllers/controller_impls/session_controller.rs
index 2a28d07..e007722 100644
--- a/src/controllers/controller_impls/session_controller.rs
+++ b/src/controllers/controller_impls/session_controller.rs
@@ -7,7 +7,7 @@ use crate::entities::{session, user};
 use crate::services::service_collection::ServiceCollection;
 use async_trait::async_trait;
 use sea_orm::DbErr;
-use tonic::{Request, Response, Status};
+use tonic::{Code, Request, Response, Status};
 
 pub struct SessionController {
     contexts: ContextCollection,
@@ -75,8 +75,23 @@ impl SessionController {
 
 #[async_trait]
 impl SessionControllerTrait for SessionController {
-    async fn delete_session(&self, _request: Request<()>) -> Result<Response<()>, Status> {
-        todo!()
+    /// Deletes the requester's session, found by their access token.
+    ///  
+    /// Returns the response that is received from Reveaal.
+    async fn delete_session(&self, request: Request<()>) -> Result<Response<()>, Status> {
+        let access_token = request
+            .token_string()
+            .ok_or(Status::unauthenticated("No access token provided"))?;
+
+        match self
+            .contexts
+            .session_context
+            .delete_by_token(TokenType::AccessToken, access_token)
+            .await
+        {
+            Ok(_) => Ok(Response::new(())),
+            Err(error) => Err(Status::new(Code::Internal, error.to_string())),
+        }
     }
 
     /// This method is used to get a new access and refresh token for a user.
diff --git a/src/tests/controllers/session_controller.rs b/src/tests/controllers/session_controller.rs
index 05245e6..8e56d57 100644
--- a/src/tests/controllers/session_controller.rs
+++ b/src/tests/controllers/session_controller.rs
@@ -1,3 +1,4 @@
+use mockall::predicate;
 use std::env;
 use std::str::FromStr;
 
@@ -264,3 +265,73 @@ async fn get_auth_token_from_invalid_token_returns_err() {
 
     assert_eq!(response.unwrap_err().code(), Code::Unauthenticated);
 }
+
+#[tokio::test]
+async fn delete_session_returns_ok() {
+    let mut mock_contexts = get_mock_contexts();
+    let mock_services = get_mock_services();
+
+    mock_contexts
+        .session_context_mock
+        .expect_delete_by_token()
+        .with(
+            predicate::eq(TokenType::AccessToken),
+            predicate::eq("test_token".to_string()),
+        )
+        .returning(move |_, _| {
+            Ok(session::Model {
+                id: 1,
+                refresh_token: Default::default(),
+                access_token: "test_token".to_string(),
+                updated_at: Default::default(),
+                user_id: Default::default(),
+            })
+        });
+
+    let contexts = disguise_context_mocks(mock_contexts);
+    let services = disguise_service_mocks(mock_services);
+    let session_logic = SessionController::new(contexts, services);
+
+    let mut request = Request::new(());
+    request.metadata_mut().insert(
+        "authorization",
+        metadata::MetadataValue::from_str("Bearer test_token").unwrap(),
+    );
+
+    let res = session_logic.delete_session(request).await;
+
+    assert!(res.is_ok());
+}
+
+#[tokio::test]
+async fn delete_session_no_session_returns_err() {
+    let mut mock_contexts = get_mock_contexts();
+    let mock_services = get_mock_services();
+
+    mock_contexts
+        .session_context_mock
+        .expect_delete_by_token()
+        .with(
+            predicate::eq(TokenType::AccessToken),
+            predicate::eq("test_token".to_string()),
+        )
+        .returning(move |_, _| {
+            Err(DbErr::RecordNotFound(
+                "No session found with the provided access token".to_string(),
+            ))
+        });
+
+    let contexts = disguise_context_mocks(mock_contexts);
+    let services = disguise_service_mocks(mock_services);
+    let session_logic = SessionController::new(contexts, services);
+
+    let mut request = Request::new(());
+    request.metadata_mut().insert(
+        "authorization",
+        metadata::MetadataValue::from_str("Bearer test_token").unwrap(),
+    );
+
+    let res = session_logic.delete_session(request).await;
+
+    assert_eq!(res.unwrap_err().code(), Code::Internal);
+}