diff --git a/.htaccess b/.htaccess
index 6b50941..7b0da46 100644
--- a/.htaccess
+++ b/.htaccess
@@ -13,6 +13,10 @@
 ErrorDocument 404 /assets/error-404.html
 ErrorDocument 500 /assets/error-500.html
 
+<IfModule mod_alias.c>
+	RedirectMatch 403 /silverstripe-cache(/|$)
+</IfModule>
+
 <IfModule mod_rewrite.c>
 	RewriteEngine On
 	RewriteCond %{REQUEST_URI} ^(.*)$
diff --git a/install.php b/install.php
index 72e90d9..79bcffb 100644
--- a/install.php
+++ b/install.php
@@ -1103,6 +1103,10 @@ HTML;
 ErrorDocument 404 /assets/error-404.html
 ErrorDocument 500 /assets/error-500.html
 
+<IfModule mod_alias.c>
+	RedirectMatch 403 /silverstripe-cache(/|$)
+</IfModule>
+
 <IfModule mod_rewrite.c>
 	RewriteEngine On
 	$baseClause
@@ -1137,6 +1141,13 @@ TEXT;
 <?xml version="1.0" encoding="utf-8"?>
 <configuration>
 	<system.webServer>
+		<security>
+			<requestFiltering>
+				<hiddenSegments applyToWebDAV="false">
+					<add segment="silverstripe-cache" />
+				</hiddenSegments>
+			</requestFiltering>
+		</security>
 		<rewrite>
 			<rules>
 				<rule name="SilverStripe Clean URLs" stopProcessing="true">