Microsoft 365 outage hits Outlook and Teams
An outage of multiple Microsoft 365 services is causing delays and login issues.
The outage affects users of Exchange Online, Teams, SharePoint, Graph API and Universal Print. Some cannot send emails. Others cannot access Microsoft 365 at all.
"Users may encounter delays and experience failur... Read more
Windows Server 2012 R2 patch breaks domain controllers and Hyper-V
The latest security update for Windows Server 2012 R2 can cause a boot loop in domain controllers running on Windows Server 2012, 2016 and 2019. Multiple sysadmins report that their domain controllers are rebooting endlessly since installing the update.
The sysadmins raised the issue via Reddit ... Read more
FBI hacks into Exchange servers to protect them
The FBI has shared information about an operation in which it hacks into leaky Exchange servers. The intelligence service removes any web shells that attackers have placed to create a backdoor.
In the announcement of the operation, the FBI said that many owners of infected systems had already su... Read more
Four new critical vulnerabilities in Exchange
Once again, several critical Microsoft Exchange Server vulnerabilities have been found. Two of them give attackers access to a server without having to log in. Patches for the vulnerabilities are available.
Microsoft has been notified of the new Exchange vulnerabilities by the National Security ... Read more
’92 percent of Exchange servers have been patched’
Microsoft estimates that 92 percent of vulnerable Exchange servers have now received a patch. This suggests that the vast majority of IT administrators are taking the problems seriously.
The data comes from a tweet by Microsoft Security Response. In this tweet, the company says that 92 percent o... Read more
Hacks on Exchange servers keep flooding in
Thousands of reports of attacks on Exchange vulnerabilities are still coming in every day. Researchers say that the servers are being hacked faster than they can count.
The researchers from cybersecurity firm F-Secure are urgently warning users with Exchange servers to install the patches. "Tens... Read more
Microsoft Defender automatically patches Exchange vulnerability
Microsoft has added a tool to its Defender antivirus software that automatically closes critical vulnerabilities in Microsoft Exchange Server. With this, the company hopes to reduce the number of vulnerable systems even faster.
The automatic tool focuses specifically on vulnerability CVE-2021-26... Read more
Microsoft releases tool to help close Exchange vulnerabilities
To assist administrators in resolving Exchange vulnerabilities, Microsoft has released a new tool. With this tool, administrators can install the most necessary patches in one click.
Microsoft has announced the so-called one-click mitigation tool in a blog post. The company says that on the basi... Read more
Exchange hacks increasing exponantially
In the last few days, the number of attacks on Exchange vulnerabilities has increased by a factor of ten. Germany, the UK and the Netherlands are some of the countries most affected by the attacks.
Cybersecurity company Check Point shared these figures. The company says that in the period from 1... Read more
Vulnerability in Exchange exposes tens of thousands of organisations
Only a few months after what Microsoft called the biggest hack in recent history, Microsoft's own software now seems to contain a gigantic and actively exploited vulnerability.
It concerns a vulnerability in Microsoft Exchange, writes Reuters. Attackers have managed to install a backdoor via the... Read more