Exchange Online not vulnerable, but even a single on prem box means a customer could be at risk. Read more: HAFNIUM targeting Exchange Servers with 0-day exploits – Microsoft SecurityĮxchange On Prem 0 day for all versions 2010+. Microsoft Threat Intelligence Center (MSTIC) attributes this campaign with high confidence to HAFNIUM, a group assessed to be state-sponsored and operating out of China, based on observed victimology, tactics and procedures. Outlook 2016 / 2019 / 2021 / 365 Update for March 2023 News. Looking for Office 2019 support Find account support, app training, and usage tips. In the attacks observed, the threat actor used these vulnerabilities to access on-premises Exchange servers which enabled access to email accounts, and allowed installation of additional malware to facilitate long-term access to victim environments. Support for Microsoft Outlook, Exchange and Office 365. All without complicated preparations, PowerShell scripting and downtime.Microsoft has detected multiple 0-day exploits being used to attack on-premises versions of Microsoft Exchange Server in limited and targeted attacks. Thanks to this GUI-based mailbox migration tool, you will be able to easily migrate the contents of all on-premises mailboxes and public folders to the cloud. Plus, there are no filtering options available at all.ĬodeTwo Office 365 Migration can help you simplify the entire migration process.

In all cases, the migration can cause downtime, involves using several PowerShell commands and preparing mailbox mapping CSV files. In the case of Exchange 2010, 2013 or 2016, migrating mailboxes often requires setting up a hybrid deployment. There is no native solution that allows migrating all mailboxes at once directly to Office 365 (unless you use the PST import function, which is not regarded as a reliable one). Migrating on-premises Exchange Server to Office 365 (Exchange Online) can be a challenging task to complete.

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