Messageware OWA Guard is a security application designed to protect Microsoft Exchange Server's Outlook Web App (OWA) from logon-based attacks and unauthorized access attempts. The product provides advanced authentication controls for OWA deployments, which must be exposed to the internet as Exchange Client Access Servers (CAS), making them targets for credential-based attacks. OWA Guard addresses this by adding a layer of logon intelligence and access control on top of the existing OWA infrastructure. Key capabilities include: - Dynamic CAPTCHA challenges to detect and block automated brute-force attacks, password guessers, and phishing attempts - A recent activity page that allows users to review their own logon history and change passwords when suspicious activity is detected - Customizable logon policies and security checks aligned to corporate security requirements - Real-time alerting to notify administrators of suspicious logon behavior - Comprehensive reporting services covering logon activity, failed attempts, and geo-location-based failure analysis - Full tracking and recording of all logon activity for pattern analysis and forensic use OWA Guard targets IT administrators and security professionals who need visibility into and control over OWA access activity. The solution stores logon data in a database and provides drilldown reporting from summary charts to raw source data.