Identity Threat Detection & Response
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- Active Directory Security (178)
- AD Security 101 (15)
- Community Tools (17)
- Directory Modernization (9)
- From the Front Lines (67)
- Hybrid Identity Protection (59)
- Identity Attack Catalog (9)
- Identity Threat Detection & Response (120)
- Our Mission: Be a Force for Good (14)
- Purple Knight (5)
- The CISO's Perspective (13)
- Threat Research (47)
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How to Defend Against MFA Fatigue Attacks: AD Security 101
- Daniel Petri
- Dec 05, 2023
An MFA fatigue attack—also known as MFA bombing—is an attack tactic, technique, and procedure (TTP) in which a threat actor floods users with multifactor authentication (MFA) requests. By overwhelming, confusing, or distracting the user into approving a fraudulent request, attackers hope to gain access to your network environment. Microsoft recently…
Semperis Offers New Protection Against Okta Breaches
- Semperis Research Team
- Aug 30, 2023
In an ever-evolving digital landscape, organizations rely on robust identity protection solutions to safeguard sensitive data and maintain secure operations. For most enterprise businesses, that means protecting Active Directory and Entra ID (formerly Azure AD). But identity protection is just as vital for organizations that use Okta, a cloud-based identity…
How to Protect Active Directory Against Kerberoasting: AD Security 101
- Daniel Petri
- Aug 25, 2023
Active Directory (AD) remains a crucial backbone for enterprise IT environments, centralizing authentication and authorization for users and computers. However, Active Directory’s importance—coupled with its age and the technical debt it often accrues—makes it a primary target for cyberattacks. One common attack technique, called Kerberoasting, exploits the Kerberos authentication protocol…
How to Prevent a Man-in-the-Middle Attack: AD Security 101
- Daniel Petri
- Jul 13, 2023
A man-in-the-middle attack, also known as an MitM attack, is a form of eavesdropping in an attempt to steal sensitive data, such as user credentials. These attacks can pose a serious threat to organizations' network security, particularly in environments that use Microsoft Active Directory (AD) for identity management. As Active…
AD Security 101: Securing Primary Group IDs
- Daniel Petri
- Jul 05, 2023
Welcome to AD Security 101, a series that covers the basics of Active Directory (AD) security. This week, we look at primary group IDs and how unnecessary changes to them can complicate account management. Attackers can also exploit primary group IDs to introduce security risks, including privilege escalation, and to…
Resource-Based Constrained Delegation: AD Security 101
- Daniel Petri
- Jun 23, 2023
Resource-based constrained delegation (RBCD) is an Active Directory (AD) security feature that enables administrators to delegate permissions in order to manage resources more securely and with greater control. Introduced in Windows Server 2012 R2 as an enhancement to the traditional Kerberos constrained delegation (KCD), RBCD can help to reduce the…
AD Security 101: Domain Controller Security
- Daniel Petri
- May 05, 2023
For organizations that use Active Directory (AD), securing domain controllers (DCs) is an essential part of AD security. DCs are critical components of the IT infrastructure. These servers hold sensitive and security-related data, including user account information, authentication credentials, and Group Policy objects (GPOs). Naturally, then, DC security is an…
Identity Attack Watch: AD Security News, April 2023
- Semperis Research Team
- Apr 28, 2023
As cyberattacks targeting Active Directory continue to rise, AD security, identity, and IT teams face mounting pressure to monitor the evolving AD-focused threat landscape. To assist IT professionals in comprehending and preventing attacks that involve AD, the Semperis Research Team publishes a monthly roundup of recent cyberattacks. In this month’s…
