diff --git a/.bandit b/.bandit
new file mode 100644
index 00000000..5b0c063b
--- /dev/null
+++ b/.bandit
@@ -0,0 +1,2 @@
+[bandit]
+skips: B410
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 0115bc84..9045114c 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -17,6 +17,7 @@ jobs:
         - {name: Type, python: '3.9', os: ubuntu-latest, tox: type, codecov: false}
         - {name: Pylint, python: '3.9', os: ubuntu-latest, tox: pylint, codecov: false}
         - {name: Vulture, python: '3.9', os: ubuntu-latest, tox: vulture, codecov: false}
+        - {name: Bandit, python: '3.9', os: ubuntu-latest, tox: bandit, codecov: false}
     steps:
     - name: Check out source code
       uses: actions/checkout@v2
diff --git a/a3m/client/clientScripts/check_for_submission_documentation.py b/a3m/client/clientScripts/check_for_submission_documentation.py
index f49323b6..14e28143 100644
--- a/a3m/client/clientScripts/check_for_submission_documentation.py
+++ b/a3m/client/clientScripts/check_for_submission_documentation.py
@@ -31,4 +31,4 @@ def call(jobs):
                 f = open(fileName, "a")
                 f.write("No submission documentation added")
                 f.close()
-                os.chmod(fileName, 488)
+                os.chmod(fileName, 0o660)
diff --git a/a3m/client/clientScripts/verify_checksum.py b/a3m/client/clientScripts/verify_checksum.py
index 33419239..d7fbeffd 100644
--- a/a3m/client/clientScripts/verify_checksum.py
+++ b/a3m/client/clientScripts/verify_checksum.py
@@ -29,7 +29,8 @@
 import datetime
 import logging
 import os
-import subprocess
+import shlex
+import subprocess  # nosec B404
 import sys
 import uuid
 
@@ -95,9 +96,11 @@ def _call(self, *args, **kwargs):
         """Make the call to Python subprocess and record the command being
         called.
         """
-        self.command_called = (self.COMMAND,) + args
+        self.command_called = shlex.split((self.COMMAND,) + args)
         return self._decode(
-            subprocess.check_output(self.command_called, cwd=kwargs.get("transfer_dir"))
+            subprocess.check_output(  # nosec B603
+                self.command_called, cwd=kwargs.get("transfer_dir")
+            )
         )
 
     def count_and_compare_lines(self, objects_dir):
diff --git a/a3m/client/clientScripts/virus_scan.py b/a3m/client/clientScripts/virus_scan.py
index 53e27817..7cfdf05d 100644
--- a/a3m/client/clientScripts/virus_scan.py
+++ b/a3m/client/clientScripts/virus_scan.py
@@ -20,7 +20,8 @@
 import logging
 import os
 import re
-import subprocess
+import shlex
+import subprocess  # nosec B404
 import uuid
 
 from clamd import BufferTooLongError
@@ -176,7 +177,9 @@ class ClamScanner(ScannerBase):
     COMMAND = "clamscan"
 
     def _call(self, *args):
-        return subprocess.check_output((self.COMMAND,) + args)
+        return subprocess.check_output(  # nosec B603
+            shlex.split((self.COMMAND,) + args)
+        )
 
     def scan(self, path):
         passed, state, details = (False, "ERROR", None)
diff --git a/a3m/databaseFunctions.py b/a3m/databaseFunctions.py
index 2fd2c307..7e742b7c 100644
--- a/a3m/databaseFunctions.py
+++ b/a3m/databaseFunctions.py
@@ -263,4 +263,4 @@ def retryOnFailure(description, callback, retries=10):
                         retry + 1,
                         e,
                     )
-                    time.sleep(random.uniform(0, 2))
+                    time.sleep(random.uniform(0, 2))  # nosec B311
diff --git a/a3m/executeOrRunSubProcess.py b/a3m/executeOrRunSubProcess.py
index b57eea24..c0a92d66 100644
--- a/a3m/executeOrRunSubProcess.py
+++ b/a3m/executeOrRunSubProcess.py
@@ -18,9 +18,9 @@
 import io
 import os
 import shlex
-import subprocess
+import subprocess  # nosec B404
 import sys
-import uuid
+import tempfile
 
 
 def launchSubProcess(
@@ -89,7 +89,7 @@ def launchSubProcess(
             raise Exception("stdIn must be a string or a file object")
         if capture_output:
             # Capture the stdout and stderr of the subprocess
-            p = subprocess.Popen(
+            p = subprocess.Popen(  # nosec B603
                 command,
                 stdout=subprocess.PIPE,
                 stderr=subprocess.PIPE,
@@ -100,7 +100,7 @@ def launchSubProcess(
         else:
             # Ignore the stdout of the subprocess, capturing only stderr
             with open(os.devnull, "w") as devnull:
-                p = subprocess.Popen(
+                p = subprocess.Popen(  # nosec B603
                     command,
                     stdin=stdin_pipe,
                     env=my_env,
@@ -131,25 +131,25 @@ def launchSubProcess(
 def createAndRunScript(
     text, stdIn="", printing=False, arguments=[], env_updates={}, capture_output=True
 ):
-    # Output the text to a /tmp/ file
-    scriptPath = "/tmp/" + uuid.uuid4().__str__()
-    FILE = os.open(scriptPath, os.O_WRONLY | os.O_CREAT, 0o770)
-    os.write(FILE, text.encode("utf8"))
-    os.close(FILE)
-    cmd = [scriptPath]
-    cmd.extend(arguments)
-
-    # Run it
-    ret = launchSubProcess(
-        cmd,
-        stdIn="",
-        printing=printing,
-        env_updates=env_updates,
-        capture_output=capture_output,
-    )
+    temp = tempfile.NamedTemporaryFile(mode="w+t", encoding="utf-8")
+    try:
+        os.chmod(temp.name, 0o770)
+
+        cmd = [temp.name]
+        cmd.extend(arguments)
+
+        # Run it
+        ret = launchSubProcess(
+            cmd,
+            stdIn="",
+            printing=printing,
+            env_updates=env_updates,
+            capture_output=capture_output,
+        )
 
     # Remove the temp file
-    os.remove(scriptPath)
+    finally:
+        temp.close()
 
     return ret
 
diff --git a/a3m/main/models.py b/a3m/main/models.py
index 44292c6f..c51eab3b 100644
--- a/a3m/main/models.py
+++ b/a3m/main/models.py
@@ -588,13 +588,13 @@ def get_directory_name(self, default=None):
                 r"^.*/(?P<directory>.*)-" r"[\w]{8}(-[\w]{4})" r"{3}-[\w]{12}[/]{0,1}$",
                 self.directory,
             ).group("directory")
-        except Exception:
+        except re.error:
             pass
         try:
             return re.search(r"^.*/(?P<directory>.*)/$", self.directory).group(
                 "directory"
             )
-        except Exception:
+        except re.error:
             pass
 
 
diff --git a/a3m/server/tasks/task.py b/a3m/server/tasks/task.py
index 69cb99ac..ed0e2788 100644
--- a/a3m/server/tasks/task.py
+++ b/a3m/server/tasks/task.py
@@ -103,7 +103,7 @@ def _write_file_to_disk(self, path, contents):
         try:
             with open(path, "a") as f:
                 f.write(contents)
-            os.chmod(path, 0o750)
+            os.chmod(path, 0o640)
         except Exception:
             logger.exception("Unable to write to: %s", path)
 
diff --git a/requirements-dev.txt b/requirements-dev.txt
index c840999f..da5bfa46 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -22,6 +22,8 @@ babel==2.9.1
     # via sphinx
 bagit==1.8.1
     # via a3m (setup.py)
+bandit==1.7.4
+    # via a3m (setup.py)
 black==22.3.0
     # via a3m (setup.py)
 boto3==1.21.38
@@ -67,6 +69,10 @@ flake8==4.0.1
     # via a3m (setup.py)
 future==0.18.2
     # via metsrw
+gitdb==4.0.9
+    # via gitpython
+gitpython==3.1.27
+    # via bandit
 googleapis-common-protos==1.56.0
     # via
     #   a3m (setup.py)
@@ -137,6 +143,8 @@ packaging==21.3
     #   tox
 pathspec==0.9.0
     # via black
+pbr==5.8.1
+    # via stevedore
 pep517==0.12.0
     # via pip-tools
 pip-tools==6.6.0
@@ -200,6 +208,7 @@ pytz==2022.1
     #   django
 pyyaml==6.0
     # via
+    #   bandit
     #   pre-commit
     #   vcrpy
 releases==1.6.3
@@ -218,9 +227,12 @@ six==1.16.0
     # via
     #   grpcio
     #   metsrw
+    #   python-dateutil
     #   tox
     #   vcrpy
     #   virtualenv
+smmap==5.0.0
+    # via gitdb
 snowballstemmer==2.2.0
     # via sphinx
 sphinx==4.5.0
@@ -243,6 +255,8 @@ sphinxcontrib-serializinghtml==1.1.5
     # via sphinx
 sqlparse==0.4.2
     # via django
+stevedore==3.5.0
+    # via bandit
 tenacity==8.0.1
     # via a3m (setup.py)
 toml==0.10.2
diff --git a/setup.cfg b/setup.cfg
index 3df4951d..9f697684 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -77,6 +77,7 @@ dev =
     vulture
     black
     flake8
+    bandit
     pre-commit
     sphinx
     sphinxcontrib-mermaid
diff --git a/tox.ini b/tox.ini
index ee4981f9..a7707023 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,7 +1,7 @@
 [tox]
 skipsdist = True
 minversion = 3.14.6
-envlist = py, lint, pylint, type, vulture
+envlist = py, lint, pylint, type, vulture, bandit
 
 [testenv]
 basepython = python3.9
@@ -34,6 +34,10 @@ commands =
 skip_install = True
 commands = - vulture --exclude="a3m/settings,a3m/main/models.py,a3m/main/migrations,a3m/fpr/models.py,a3m/fpr/migrations,a3m/server/rpc/proto" a3m
 
+[testenv:bandit]
+skip_install = True
+commands = bandit -r a3m --ini .bandit
+
 [flake8]
 exclude = .tox, .git, __pycache__, .cache, build, dist, *.pyc, *.egg-info, .eggs
 application-import-names = flake8