The OWAReaper implant can establish server-side mailbox permissions that remain after credentials are changed and affected devices are rebuilt. A Russia-aligned threat group used a “half-click” ...

The Russian state-sponsored hacking group Laundry Bear, also known as Void Blizzard, is exploiting an Exchange Outlook Web Access vulnerability in email campaigns to deliver a sophisticated backdoor ...

Microsoft has announced plans to disable Outlook Web Access (OWA) Light, the lightweight version of the Outlook Web App email client, in a future Exchange Server update. "OWA Light was an important ...

Organizations running on-premises Microsoft Exchange Server are facing a five-day-old zero-day with no permanent fix in sight and a growing list of side-effects from the only protection currently ...

Microsoft warned that attackers are exploiting a new Exchange Server zero-day vulnerability, tracked as CVE-2026-42897, in the wild. Microsoft warned that threat actors are actively exploiting a new ...

A critical cross-site scripting (XSS) vulnerability (CVE-2026-42897) in Microsoft Exchange Server is being exploited by attackers, Microsoft warned on Thursday. A permanent fix is still in the works.

Microsoft has disclosed a new security vulnerability impacting on-premise versions of Exchange Server that it said has come under active exploitation in the wild. The vulnerability, tracked as ...

A lot of organizations have this feature where the user can encrypt the message that they are sending for privacy. Some users have reported seeing the following error ...

[German]A small note for administrators whose users are using OutlookWeb Access (OWA) and are now complaining that emails that have been moved to other folders are suddenly appearing there several ...

Over the last few months, there have been numerous complaints from users of Microsoft Outlook that they are unable to reply to encrypted emails. An error message that ...

Outlook on the web is the browser-based email client for users to access email, calendars, tasks and contacts from Microsoft's on-premises Exchange Server and cloud-based Exchange Online. Outlook on ...

В конце июня корпорация Microsoft объявила о начале тиражирования новой версии сервера обмена сообщениями и групповой работы — Microsoft Exchange Server 2003. По этому адресу можно заказать 120-дневну ...