diff --git a/config.py b/config.py
index c1999cde4..40d685706 100644
--- a/config.py
+++ b/config.py
@@ -252,7 +252,7 @@ class DefaultConfig(object):
   EXP_ASYNC_GARBAGE_COLLECTION = []
 
   # Security scanner
-  FEATURE_SECURITY_SCANNER = True
+  FEATURE_SECURITY_SCANNER = False
   SECURITY_SCANNER = {
     'ENDPOINT': 'http://192.168.99.100:6060',
     'ENGINE_VERSION_TARGET': 1,
diff --git a/data/migrations/versions/2fb9492c20cc_backfill_parent_ids_and_checksums.py b/data/migrations/versions/2fb9492c20cc_backfill_parent_ids_and_checksums.py
deleted file mode 100644
index afd589809..000000000
--- a/data/migrations/versions/2fb9492c20cc_backfill_parent_ids_and_checksums.py
+++ /dev/null
@@ -1,21 +0,0 @@
-"""backfill parent ids and checksums
-Revision ID: 2fb9492c20cc
-Revises: 57dad559ff2d
-Create Date: 2015-07-14 17:38:47.397963
-"""
-
-# revision identifiers, used by Alembic.
-revision = '2fb9492c20cc'
-down_revision = '57dad559ff2d'
-
-from alembic import op
-import sqlalchemy as sa
-from util.migrate.backfill_parent_id import backfill_parent_id
-from util.migrate.backfill_checksums import backfill_checksums
-
-def upgrade(tables):
-    backfill_parent_id()
-    backfill_checksums()
-
-def downgrade(tables):
-    pass
diff --git a/data/migrations/versions/50925110da8c_add_event_specific_config.py b/data/migrations/versions/50925110da8c_add_event_specific_config.py
index eb9e9c1c8..4a7672b70 100644
--- a/data/migrations/versions/50925110da8c_add_event_specific_config.py
+++ b/data/migrations/versions/50925110da8c_add_event_specific_config.py
@@ -8,7 +8,7 @@ Create Date: 2015-10-13 18:03:14.859839
 
 # revision identifiers, used by Alembic.
 revision = '50925110da8c'
-down_revision = '2fb9492c20cc'
+down_revision = '57dad559ff2d'
 
 from alembic import op
 import sqlalchemy as sa
diff --git a/util/migrate/backfill_checksums.py b/util/migrate/backfill_checksums.py
deleted file mode 100644
index 07bd55e3b..000000000
--- a/util/migrate/backfill_checksums.py
+++ /dev/null
@@ -1,66 +0,0 @@
-import logging
-from app import storage as store
-from data.database import ImageStorage, ImageStoragePlacement, ImageStorageLocation, JOIN_LEFT_OUTER
-from digest import checksums
-
-logger = logging.getLogger(__name__)
-
-# TODO: Fix this to use random
-# TODO: Copy in all referenced peewee models, as a later migration changes these
-
-def _get_imagestorages_with_locations(query_modifier):
-  query = (ImageStoragePlacement
-           .select(ImageStoragePlacement, ImageStorage, ImageStorageLocation)
-           .join(ImageStorageLocation)
-           .switch(ImageStoragePlacement)
-           .join(ImageStorage, JOIN_LEFT_OUTER))
-  query = query_modifier(query)
-
-  location_list = list(query)
-
-  storages = {}
-  for location in location_list:
-    storage = location.storage
-
-    if not storage.id in storages:
-      storages[storage.id] = storage
-      storage.locations = set()
-    else:
-      storage = storages[storage.id]
-
-    storage.locations.add(location.location.name)
-
-  return storages.values()
-
-def backfill_checksum(imagestorage_with_locations):
-  try:
-    json_data = store.get_content(imagestorage_with_locations.locations, store.image_json_path(imagestorage_with_locations.uuid))
-    with store.stream_read_file(imagestorage_with_locations.locations, store.image_layer_path(imagestorage_with_locations.uuid)) as fp:
-      imagestorage_with_locations.checksum = 'sha256:{0}'.format(checksums.sha256_file(fp, json_data + '\n'))
-      imagestorage_with_locations.save()
-  except:
-    imagestorage_with_locations.checksum = 'unknown:{0}'.format(imagestorage_with_locations.uuid)
-    imagestorage_with_locations.save()
-
-def backfill_checksums():
-  logger.setLevel(logging.DEBUG)
-  logger.debug('backfill_checksums: Starting')
-  logger.debug('backfill_checksums: This can be a LONG RUNNING OPERATION. Please wait!')
-
-  def limit_to_empty_checksum(query):
-    return query.where(ImageStorage.checksum >> None, ImageStorage.uploading == False).limit(100)
-
-  while True:
-    storages = _get_imagestorages_with_locations(limit_to_empty_checksum)
-    if len(storages) == 0:
-      logger.debug('backfill_checksums: Completed')
-      return
-
-    for storage in storages:
-      backfill_checksum(storage)
-
-if __name__ == "__main__":
-  logging.basicConfig(level=logging.DEBUG)
-  logging.getLogger('peewee').setLevel(logging.CRITICAL)
-  logging.getLogger('boto').setLevel(logging.CRITICAL)
-  backfill_checksums()