diff --git a/app/main.py b/app/main.py
index c416078..a1fe379 100644
--- a/app/main.py
+++ b/app/main.py
@@ -40,7 +40,7 @@ def save(
     random: bool = True,
 ) -> None:
     sqlite_repo = sqlite.get_instance()
-    seed = r.randint(0, 100) if random else 0
+    seed = r.randint(0, 100) if random else 0  # nosec
     options = pass_gen.PassGenOptions(
         service=service,
         seed=seed,
diff --git a/app/repositories/fake.py b/app/repositories/fake.py
index 4bf6941..25bc756 100644
--- a/app/repositories/fake.py
+++ b/app/repositories/fake.py
@@ -1,13 +1,15 @@
 from __future__ import annotations
 
+from pydantic import SecretStr
+
 from app.models.password import Password
 
 
 class FakeRepository:
-    _values = {}
+    _values: dict[str, SecretStr] = {}
 
     def save(self, service: str, password: str) -> None:
-        self._values[service] = password
+        self._values[service] = SecretStr(password)
 
     def list_all(self) -> list[Password]:
         return [
@@ -17,6 +19,6 @@ class FakeRepository:
     def exists(self, service: str) -> bool:
         return service in self._values.keys()
 
-    @classmethod
-    def get_instance(cls) -> FakeRepository:
+    @staticmethod
+    def get_instance() -> FakeRepository:
         return FakeRepository()
diff --git a/app/usecases/utils.py b/app/usecases/utils.py
index 9db9f1a..6c5a133 100644
--- a/app/usecases/utils.py
+++ b/app/usecases/utils.py
@@ -1,8 +1,8 @@
-import subprocess
+import subprocess  # nosec
 
 
 def copy_to_clipboard(password: str) -> None:
-    subprocess.run("pbcopy", universal_newlines=True, input=password)
+    subprocess.run("pbcopy", universal_newlines=True, input=password)  # nosec
 
 
 def save_to_file(file: str, password: str) -> None: