diff --git a/monkey/infection_monkey/credential_store/__init__.py b/monkey/infection_monkey/credential_store/__init__.py
index 636e9baa7..3b3f4475f 100644
--- a/monkey/infection_monkey/credential_store/__init__.py
+++ b/monkey/infection_monkey/credential_store/__init__.py
@@ -1 +1,2 @@
 from .i_credentials_store import ICredentialsStore
+from .credentials_store import CredentialsStore
diff --git a/monkey/infection_monkey/credential_store/credentials_store.py b/monkey/infection_monkey/credential_store/credentials_store.py
new file mode 100644
index 000000000..a0500804d
--- /dev/null
+++ b/monkey/infection_monkey/credential_store/credentials_store.py
@@ -0,0 +1,29 @@
+from typing import Mapping
+
+from .i_credentials_store import ICredentialsStore
+
+
+class CredentialsStore(ICredentialsStore):
+    def __init__(self, credentials: Mapping = None):
+        self.stored_credentials = credentials
+
+    def add_credentials(self, credentials_to_add: Mapping) -> None:
+        if self.stored_credentials is None:
+            self.stored_credentials = {}
+
+        for key, value in credentials_to_add.items():
+            if key not in self.stored_credentials:
+                self.stored_credentials[key] = []
+
+            if key != "exploit_ssh_keys":
+                self.stored_credentials[key] = list(
+                    sorted(set(self.stored_credentials[key]).union(credentials_to_add[key]))
+                )
+            else:
+                self.stored_credentials[key] += credentials_to_add[key]
+                self.stored_credentials[key] = [
+                    dict(s) for s in set(frozenset(d.items()) for d in self.stored_credentials[key])
+                ]
+
+    def get_credentials(self) -> Mapping:
+        return self.stored_credentials