Strengthening Identity Security: Five Essential Steps for Businesses
In the current landscape of cybersecurity threats, identity compromise has emerged as a prevalent method used by attackers to infiltrate business systems. While traditional defenses such as firewalls and endpoint protection continue to serve a purpose, their effectiveness diminishes significantly once an assailant gains entry using valid credentials. This reality underscores the critical importance for Managed Service Providers (MSPs) and corporate IT teams to fortify identity security measures. Enhancing identity security alongside enforcing a principle of least privilege access can effectively mitigate potential risks and thwart attacks before they escalate.
To assist organizations in bolstering their identity security, the following five practical steps are outlined, designed to enhance protection across human, machine, and workload identities. These steps also emphasize the need for building resilience against attacks through continuous validation.
1. Enforce Multi-Factor Authentication (MFA) Across the Board
One of the most effective defenses against credential-based attacks remains Multi-Factor Authentication (MFA). Relying solely on passwords has proven insufficient for protecting critical systems, especially as phishing and the deployment of infostealer malware escalate.
Organizations are encouraged to prioritize MFA implementation by focusing first on high-risk identities. These include:
- Admin accounts
- MSP technician accounts
- Cloud infrastructure accounts
- External-facing applications
- Remote access tools
The deployment of any form of MFA is preferable to having none, but methods resistant to phishing should be prioritized for the best protection. Following the successful implementation of MFA on privileged accounts, organizations should aim to extend its application to all users within a 30-day timeframe. This strategy serves to diminish the likelihood that compromised credentials could lead to unauthorized access.
2. Implement Privileged Access Management (PAM) to Govern Admin Permissions
Another vital component of effective identity security is adopting least privilege. Even when users authenticate successfully, their access should be confined to the minimal resources necessary for their specific roles. Privileged Access Management (PAM) plays a crucial role in this effort, centralizing credential storage, eliminating the use of shared administrative passwords, and governing privilege elevation on endpoints.
N-able Passportal™ is one tool that enhances teams’ ability to secure privileged credentials by automatically vaulting and rotating them, integrating seamlessly with Microsoft Active Directory. This reduces risks associated with privilege creep, orphaned accounts, and long-lived passwords that can be easily exploited by attackers.
For Managed Service Providers, centralized credential management is essential, preventing compromised technician credentials from granting unauthorized access to multiple client environments. In corporate IT teams, PAM effectively reduces the potential for privilege escalation following initial access by attackers.
3. Undertake an Comprehensive Inventory of All Identities
For organizations to effectively protect their identities, they must first be aware of which identities exist within their systems. It is often noted that there exists a significantly higher number of machine and service accounts than human users, and these non-human identities frequently have elevated privileges with little oversight.
A thorough identity inventory should encompass:
- Employee, contractor, and vendor accounts
- Service accounts assigned for scheduled tasks and automation
- API keys involved in integration processes
- Certificates used for encrypted communication
- Application and workload identities prevalent in cloud-native environments
Special attention should be directed toward machine and workload identities as their exploitation rarely triggers alerts. Attackers increasingly target these identities to escalate privileges unnoticed. By maintaining a comprehensive inventory, IT teams can identify shadow identities, eliminate unnecessary permissions, and diminish lateral movement pathways available to attackers.
4. Establish Continuous Validation to Detect Compromise More Effectively
Credential compromise often goes undetected for extended periods of time — sometimes months. Continuous validation assists in abbreviating this window through real-time monitoring of identity behavior, looking for anomalies such as:
- Impossible travel logins
- Sudden privilege escalations
- Activity from unmanaged devices
- Unusual authentication patterns
- Unexpected API usage
Given the sophisticated nature of modern identity attacks, which frequently employ automated methods and AI-driven phishing, continuous validation becomes a necessary practice that enables security teams to detect anomalies sooner and contain attacks before they escalate. Tools such as Adlumin ITDR™ bolster identity threat detection by monitoring Microsoft 365 logins for abnormal behavior and allowing automatic action based on the level of severity.
5. Cultivating Foundations of Zero Trust
Identity security serves as the cornerstone of a Zero Trust model, yet it must not function in isolation. Strong authentication mechanisms prove ineffective if endpoints remain unpatched or if privileges are granted too broadly. To effectively reduce lateral movement and fortify resilience against attacks, a Zero Trust approach mandates ongoing verification across five domains:
- Identity: Authenticate every user and entity.
- Devices: Ensure compliance with security protocols on endpoints.
- Networks: Limit potential movement through segmentation.
- Applications: Enforce granular permission structures.
- Data: Secure sensitive information at the access layer.
A common challenge arises when organizations exhibit uneven maturity across these pillars. For instance, an organization may enforce MFA without adequately addressing unmanaged endpoints, thus inadvertently providing attackers with footholds after initial access.
Tools like N-able N-central RMM™ assist in securing the device layer through patch management, vulnerability scanning, and continuous endpoint monitoring. Meanwhile, Cove Data Protection™ fortifies the data aspect by facilitating recovery in cases where identity compromise leads to ransomware attacks or destructive activities.
Conclusion: Building Identity-Driven Attack Resilience
The journey towards robust identity security is not a one-time endeavor, but rather an ongoing process that involves consistently enforcing stronger authentication practices, removing unneeded privileges, validating each access request, and monitoring for misuse.
A roadmap for IT and security teams may include:
- Enforcing MFA for all identities, prioritizing those with privileged access.
- Deploying PAM to manage and secure administrative credentials.
- Documenting all types of identities and eliminating or restricting unnecessary accounts.
- Continuously monitoring authentication behavior to identify compromises early.
- Extending Zero Trust principles across devices, networks, applications, and data security.
Altogether, these strategies significantly diminish the probability that attackers can leverage valid credentials to gain extensive access to organizational resources. They also serve to localize the impact of any identity compromise should it occur.
For further insights, organizations may consider downloading the latest 2026 State of the SOC report, which offers a data-driven playbook designed to enhance resilience across identity, endpoint, cloud, network, and perimeter layers.