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High Volume Attacks – Microsoft Exchange Server Security

Video summary: This video discusses high volume logon attacks (HVA) against Microsoft Exchange servers and Messageware Exchange Protocol Guard’s role in countering these attacks. https://www.youtube.com/watch?v=9blVda_IJIM Cybersecurity threats are becoming more sophisticated and relentless, especially for critical infrastructure like email servers. One such threat to be aware of is the high-volume logon attack (HVA), which targets [...]

High Volume Attacks – Microsoft Exchange Server Security2024-01-09T06:23:13-05:00

Exchange Server Security: Why MFA/2FA Is Not Enough

Gaps in Multi-Factor Authentication (MFA) In this article, we will explore some of the drawbacks of MFA/2FA as a user security tool. Multi-Factor Authentication (MFA), also known as 2-Factor Authentication (2FA), has become an essential tool for protecting user accounts. It has become so ubiquitous, Microsoft has recently started enforcing it on all tenants by [...]

Exchange Server Security: Why MFA/2FA Is Not Enough2023-12-13T12:07:02-05:00

Why Windows cached credentials cause AD lockouts

What are Windows cached credentials? The purpose of Windows cached credentials is to enable users to log into their accounts and access network resources even when the authentication server is unavailable, such as during offline use, while also improving login performance by reducing the need for frequent server authentications. Cached credentials are stored locally on [...]

Why Windows cached credentials cause AD lockouts2023-12-13T12:07:35-05:00

Why Exchange Servers cause Active Directory User Lockouts and how to Prevent Them

Article Summary: This article examines the common Exchange Server attacks that result in Active Directory lockouts and effective techniques to prevent Active Directory user accounts lockouts. By deploying intelligent threat detection, enforcing strong password policies, enabling multi-factor authentication, and monitoring signs of compromise, companies can thwart attackers’ efforts to access mailboxes and maintain business continuity. [...]

Why Exchange Servers cause Active Directory User Lockouts and how to Prevent Them2024-03-05T07:32:24-05:00