SafeToOpen is a fresh approach to winning the never-ending battle with phishing attempts, account takeover and business email compromise. The Customer Instance (this VM) works with SafeToOpen's central threat intelligence and the SafeToOpen browser extensions and Microsoft Outlook add-in to allow your organization to prevent, quickly detect and respond to phishing attacks. The browser extension detects known-malicious sites and sites that are likely attempting to steal user authentication credentials. This approach works whether corporate users are on or off the corporate network and with both company and personal devices. It protects against phishing links delivered via private email and social media too. Administrators can configure the browser extension to prevent users from submitting credentials to risky sites and can review unsafe sign-in pages from the portal provided by this private Customer Instance. SafeToOpen detects previously unknown phishing sites using computer vision, machine learning and contextual indicators of unsafe sign-in webpages. Threat intelligence augments this computer-vision based system. SafeToOpen eases the burden of IT and security teams facing extensive phishing campaigns and reassures nervous users that legitimate messages are "safe to open". SafeToOpen for Azure is a backend service for SafeToOpen Browser Extension (https://safetoopen.com/BrowserExtension.html) and Email Verification (https://safetoopen.com/EmailVerification.html).