Power Pages - Security Overview

Power Pages - Security Overview

Understand how Power Pages protects your data, controls access, and ensures enterprise-grade security for web sites.

Platform-level Security & Hosting

Power Pages is hosted on a secure cloud platform that offers built-in protections: encrypted connections (TLS), compliance with enterprise-grade security standards, and safeguards against common threats such as DDoS attacks. This ensures that both data in transit and the infrastructure behind your site remain protected.

Controlling Who Sees Your Site

By default, new Power Pages sites are private - meaning only authenticated, internal users can view them. When you’re ready to go live, you can set the site visibility to "Public" so anyone (anonymous or authenticated) can access it via the Internet. This lets you safely build and review a site before exposing it to the public.

Authentication & Role-Based Access

For authenticated access, Power Pages uses identity providers to verify users. Once authenticated, users are represented as contacts in the underlying data platform and assigned to one or more "web roles". These roles determine what data and pages a user can access.

There are default roles such as "Authenticated Users" (for logged-in users) and "Anonymous Users" (for visitors), but you can define custom roles with fine-grained access. This mechanism allows a mix of public-facing content and private or sensitive sections; all under the same site.

Fine-Grained Data and Page Security

Access to data stored in the backend (lists, records, forms) is managed via "table permissions". These permissions - linked to web roles - determine who can view, create, modify or delete data.

Similarly, "page permissions" let you restrict which pages (or files) are visible to which roles. This ensures sensitive pages are not publicly accessible unless explicitly allowed.

Advanced Security - Headers, CORS & Scanning

Power Pages supports configuration of HTTP/HTTPS headers - including Cross-Origin Resource Sharing (CORS), Content Security Policies, and other advanced settings - to ensure secure sharing of resources across domains, and to prevent common web attacks.

There’s also a built-in "Security Scan" (preview) you can run to detect vulnerabilities such as insecure libraries, cross-site scripting (XSS) or other weak points - helping you harden the site before going live.

Extra Protection & Best Practices

For greater security, you can integrate a Web Application Firewall (WAF) or a content delivery / edge-caching service (CDN) to block malicious traffic, limit requests, or restrict access by IP/region. This adds an outer layer of defense beyond application-level controls.

Also, because Power Pages is built with security in mind, its architecture follows defense-in-depth principles, secure defaults, and periodic security audits - reducing the risk of common web vulnerabilities.

Comments

Post a Comment

Popular posts from this blog

Part 1: Creating Code Apps in Power Apps - A step-by-step guide (with real errors I faced & how I fixed them)

Image
Intro In this post I’ll walk you through how I set up a code-based app for Power Apps (React/Vite front-end + Power Platform CLI for packaging/deployment), the exact errors I ran into, and how I solved them. If you want a hands-on, copy-paste able guide that covers Node versions, pac auth, environment issues, and packaging tips, this is for you. Prerequisites Microsoft 365 account with access to a Power Platform environment Node.js ( 20.19+  recommended LTS) VS Code Install power platform tools extension in VS Code. Steps: Step 1 : Open Visual Studio Code and launch the integrated terminal. Step 2: In the terminal, run the following commands one by one.   mkdir D:\CodeApps - Force cd D:\CodeApps npm create vite @latest myfirstapp -- -- template react - ts cd D:\CodeApps\myfirstapp npm install Initially, I ran the command: npm create vite@latest MyFirstApp -- --template react-ts This gave the error: Invalid package.json name The issue was caused because package...
Read more

Calling Microsoft Graph API from Power Automate Using Azure App Services – Step-by-Step Guide

Image
Step 1: You should have an Azure subscription, or if you have access to the Microsoft Entra Admin Center, you can create an app from there. This app can then be used in Power Automate to connect to Microsoft Graph API. Step 2: Click on "New registration" , provide a name for your app, assign the required API permissions (such as Microsoft Graph permissions), and then click "Register" to complete the app registration process. Step 3: After registration, you'll be redirected to the app's overview page. From there, navigate to the API permissions tab and click "Add a permission" to assign the necessary Microsoft Graph API permissions. Step 4: Select Microsoft Graph as the API, and based on your requirements, choose the appropriate permissions. In my case, I selected Application permissions , which do not require user sign-in and are suitable for background services or automation. Step 5: Select the required Microsoft Graph API permissions. Yo...
Read more

Step-by-Step Guide: Power Automate Custom Connector Using Graph API from Azure App Service

Image
Step 1: Open Power Automate, navigate to the Custom Connectors tab, and select Create from blank as shown in the image below. custom connector(click image for better resolution) Step 2: In the General tab, upload an icon (less than 1MB), add a description, select the correct scheme (in my case, HTTPS ), and provide the host name. For example, if your API URL is https://graph.microsoft.com/v1.0/users/{email} , the host name will be the highlighted part — graph.microsoft.com . Step 3: Go to the Security tab. Here, you need to select the authentication method. Choose OAuth 2.0 as the authentication type, as shown in the image below. Step 4: Select the Identity Provider as Azure Active Directory . Check the box Enable Service Principal Support . This option allows you to create a connection using a Client ID and Client Secret instead of using the user's own authentication. Next, provide the Client ID , Client Secret , Tenant ID , and other required details as shown in t...
Read more