Black Cat Security

Partnering with the security research community is an important part of Microsoft’s holistic approach to defending against security threats. As much of the world has shifted to working from home in the last year, Microsoft Teams has enabled people to stay connected, organized, and collaborate remotely. Microsoft and security researchers across the planet continue to partner to help secure customers and the technologies we use for remote collaboration.

3 月 18 日に今年のサイバーセキュリティ月間が終わりました。この期間中、日本セキュリティチームは、Mic

「Guidance for responders: Investigating and remediating on-premises Exchange Server vulnerabilities」の日本語抄訳です。 最近一般に公開さ

「One-Click Microsoft Exchange On-Premises Mitigation Tool – March 2021」の日本語抄訳です。 最近のオンプレミスの Exchange Server を狙った攻撃に

This guidance will help customers address threats taking advantage of the recently disclosed Microsoft Exchange Server on-premises vulnerabilities CVE-2021-26855, CVE-2021-26858, CVE-2021-26857, and CVE-2021-27065, which are being exploited. We strongly urge customers to immediately update systems. Failing to address these vulnerabilities can result in compromise of your on-premises Exchange Server and, potentially, other parts of your internal network.

We have been actively working with customers through our customer support teams, third-party hosters, and partner network to help them secure their environments and respond to associated threats from the recent Exchange Server on-premises attacks. Based on these engagements we realized that there was a need for a simple, easy to use, automated solution that would meet the needs of customers using both current and out-of-support versions of on-premises Exchange Server.

2021 年 3 月 10 日 (日本時間)、マイクロソフトは以下のソフトウェアのセキュリティ更新プログラムを公開しまし