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Protecting identities has become a top priority for security teams. However, many organizations remain exposed due to blind spots caused by identity sprawl and misplaced trust in identity providers. This blog explores why traditional security measures fall short, how AI-driven attackers are escalating identity threats, and why a proactive, identity-first approach is the only way forward.The identity security game has changed—not just because attackers are inventing new exploits, but because we’ve unintentionally made their job easier. Identity sprawl has opened the doors wide, effectively giving attackers their own “golden ticket” —pun intended— to target what is arguably an organization’s most valuable asset: its identities. Remember when an employee only needed one corporate login and a handful of permissions to access the applications and resources they needed to get their job done? Today, every worker, contractor, service account and even every IoT device is entangled in a complex web of permissions spread across multiple identity providers (IDPs), spanning directory services, such as Microsoft’s Active Directory (AD) and Entra ID; cloud services; SaaS apps; and remote access tools. The rise of IoT has further compounded this challenge by introducing machine identities that seamlessly interact across these environments, increasing both operational complexity and security risks.Identity sprawl is now a major challenge for organizations, with 57% of security professionals citing it as a key concern, according to the Identity Defined Security Alliance’s “2024 Trends in Identity Security" report. As organizations increasingly rely on multiple identity and access management (IAM) solutions to navigate the complexity of hybrid and multi-cloud environments, each new solution adds another layer of permissions, another place where identities can be exploited, and another door for attackers to walk through.The problem? Identities are the path of least resistanceWhy hack in when you can log in?Credential theft and privilege escalation are the bread and butter of modern attacks. Lateral movement—where an attacker quietly pivots from system to system using legitimate credentials—has become one of the hardest threats to detect. Why? Because it looks like business as usual.Why do attackers target identities? Aside from the fact that phishing is widely effective, there are three primary reasons.Persistence – Once they’ve compromised an account, they can maintain access for extended periods, often undetected.Stealth – Logging in with valid credentials doesn’t raise red flags like malware does.Escalation – One low-privileged user can be the first domino in a privilege escalation chain.Attackers aren’t just targeting identities—they’re exploiting them for long-term access with new AI tools. Attackers now have the ability to automate credential-based attacks, allowing them to gain persistence within networks, operate stealthily, and escalate privileges without triggering traditional alarms. Stolen credentials, phishing, and credential stuffing are being weaponized at scale, making it easier than ever for attackers to infiltrate environments, blend in with legitimate users, and expand their foothold before detection. Without proactive identity security, organizations remain blind to these silent intrusions—until it’s too late.Why now? The identity crisis has hit a breaking pointThe majority of organizations now rely on multiple IDPs to manage the complexities of cloud and remote work environments. However, many assume that identity security is “handled” by their identity provider—whether it’s Active Directory, Entra ID, or another IAM solution. In reality, IDPs are designed primarily for authentication and access control, not comprehensive security. This false sense of security often results in inaction, leaving organizations vulnerable to misconfigurations, orphan accounts, and excessive permissions—all of which significantly expand the attack surface for credential compromise. The explosion of cloud adoption, SaaS, remote work and IoT has turned identity security into a nightmare for defendersLet’s face it, AD was designed for on-premises environments over 25 years ago, and while Entra ID has evolved for cloud-first identity management, neither was built to handle the scale and complexity of today’s hybrid, multi-cloud identity landscape. Each identity-related tool plays a role, but none provide a complete solution on their own. Privileged access management (PAM) technology helps protect high-value accounts but doesn’t offer insight into the broader identity landscape. Identity governance (IGA) technology enforces policies but doesn’t provide real-time risk detection. Identity threat detection & response (ITDR) products can catch threats but often too late—by the time an alert fires, the damage is already done. Without a unified approach, security teams are left patching gaps rather than proactively managing identity risks.Proactive identity security: The way forwardSecurity teams can’t keep playing defense. It’s time to take control, especially as attackers increasingly supercharge their efforts with AI-driven automation. According to the UK's National Cyber Security Centre’s (NCSC) “The near-term impact of AI on the cyber threat” report, cyberattacks will grow in volume and impact as hackers adopt AI. As a result, identity-based threats will become even more scalable and effective for attackers. Even open-source tools like BloodHound, originally designed to help defenders map Active Directory relationships, have become invaluable to attackers. So, how do you stay ahead of bad actors?IAM hygiene isn’t just an operational concern—it’s a foundational security requirement. A recent report by CISA, “Detecting and Mitigating Active Directory Compromises,” highlights the dangers of poor IAM hygiene and the risks posed by misconfigurations, excessive permissions, and outdated security practices. Without proactive security measures, attackers can exploit identity weaknesses to gain persistence and move laterally within networks. Organizations must focus on continuous monitoring, timely remediation, and enforcing least privilege to mitigate these risks and strengthen their identity security posture.To address these challenges, organizations must adopt a proactive approach that includes the following key strategies:Eliminate the blind spots – We need tools that aggregate all identity data into a single repository, unifying on-prem and cloud identities. No more guessing which accounts are federated or which service accounts have excessive privileges.Adopt AI-powered risk assessment – Attackers use AI to find weak links. We need AI to fight back, assessing identity risks dynamically based on weaknesses, associated devices, entitlements, misconfigurations, and privilege levels.Implement actionable remediation – It’s not enough to know an identity is high-risk. Security and IAM teams need a shared language to act on it. That means visibility into remediation options, costs and prioritization—because not every identity exposure needs an immediate fix, but some are urgent.The future of identity security with TenableThis is why we’re building Identity 360 and Exposure Center—giving organizations proactive control over identity risk. Identity 360 provides a comprehensive view of identities—including accounts, devices, entitlements, groups, and roles—while leveraging advanced AI to assess and quantify their associated risks. Exposure Center empowers security teams with actionable insights and guided remediation steps, helping them prioritize and mitigate identity threats efficiently. Identity 360 provides a comprehensive view of your identities -- accounts, devices, entitlements, groups, roles and more -- and uses advanced AI to calculate the risks they pose across. Meanwhile, Exposure Center enables security teams to prioritize and remediate identity threats with actionable insights and guided steps. And we’re not stopping there. By integrating identity security data into the Tenable One Exposure Management Platform, we’re providing security leaders with enhanced attack path analysis and exposure signals—allowing them to anticipate threats, think like an attacker, and proactively shut down risks before they escalate.If anything, the pace of identity threats is speeding up, not slowing down. Organizations that stay reactive will continue playing catch-up while attackers exploit their blind spots. But with proactive security strategies, unified visibility and intelligent risk assessment, we can turn the tide. The battleground is shifting. It’s time to take control over your organization’s identities. To see Tenable Identity Exposure in action, check out our guided demo.
Analysis Summary
# Best Practices: Proactive Identity Security and Exposure Management
## Overview
These practices focus on shifting security posture from reactive response to proactive risk mitigation, specifically by gaining comprehensive visibility and control over organizational identities (accounts, devices, entitlements, groups, and roles) across the entire attack surface, as identity is recognized as the new primary battleground in cybersecurity.
## Key Recommendations
### Immediate Actions
1. **Establish Unified Identity Visibility:** Immediately begin aggregating identity data (accounts, devices, entitlements, groups, roles) into a central security platform to gain a comprehensive view of the identity landscape.
2. **Leverage Risk Quantification Tools:** Utilize advanced AI capabilities within security platforms to assess and quantify the inherent risks posed by identified identities.
3. **Prioritize Based on Exposure:** Begin using tools that integrate identity security data with overall exposure management capabilities to identify and prioritize remediation efforts based on the most critical attack paths involving identities.
### Short-term Improvements (1-3 months)
1. **Implement Guided Remediation:** Adopt systems that provide security teams with actionable insights and guided remediation steps specifically for identified identity threats.
2. **Focus on Critical Entitlements/Roles:** Review and audit high-privilege accounts, service accounts, and critical roles identified through the unified identity view to confirm or revoke unnecessary access.
3. **Integrate Identity Data into Attack Path Analysis:** Ensure identity security data is feeding into your overall attack path analysis workflows to understand how identity flaws can be exploited to reach critical assets.
### Long-term Strategy (3+ months)
1. **Develop Proactive Threat Anticipation:** Mature processes to use unified visibility and risk assessment to anticipate likely attack vectors centered on identity exploitation, moving beyond simple compliance checks.
2. **Embed Exposure Management into Decision Making:** Integrate exposure metrics and identity risk reporting directly into business and technical decision-making processes to ensure security informs resource allocation.
3. **Continuous Identity Lifecycle Management:** Implement continuous monitoring and automated processes for identity lifecycle management (provisioning, review, de-provisioning) to minimize standing access risks.
## Implementation Guidance
### For Small Organizations
- **Focus on Foundational Visibility:** Prioritize implementing a centralized tool that can quickly inventory all active identities (employees and service accounts) and their attached devices/entitlements.
- **Leverage Basic Tooling:** Start with free or low-cost vulnerability management/identity scanning tools to identify immediate misconfigurations and stale accounts.
- **Adopt Just-in-Time (JIT) Principles:** If utilizing cloud resources, enforce JIT access for administrative functions rather than relying on standing permissions.
### For Medium Organizations
- **Formalize Exposure Management:** Implement a formal Exposure Management framework that systematically connects vulnerability findings, cloud misconfigurations, and identity issues.
- **Implement Centralized Reporting:** Standardize reporting on overall cyber risk based on identity exposure metrics to communicate status to management.
- **Start AI/ML Adoption:** Begin utilizing platforms that employ advanced AI to calculate complex identity risk scores rather than relying solely on manual review.
### For Large Enterprises
- **Comprehensive Platform Integration:** Fully integrate Identity Exposure data across the entire attack surface management platform (Cloud, OT/IoT, Vulnerability).
- **Advanced Attack Path Modeling:** Utilize advanced attack path analysis capabilities to model complex, multi-stage attacks that pivot through identity compromise.
- **Develop Predictive Risk Models:** Use historical data and advanced analytics to create predictive models for identity risk evolution and proactively tune security controls.
## Configuration Examples
*The provided context heavily emphasizes the *need* for specific platform capabilities rather than providing specific command-line code or configuration files. Therefore, configuration guidance focuses on the *type* of technology required.*
1. **Cloud Infrastructure Entitlement Management (CIEM):** Ensure CIEM solutions are configured to scan for and report on overly permissive entitlements across IaaS/PaaS environments.
2. **Just-in-Time (JIT) Access:** Configure systems to revoke privileged access automatically after a defined, short duration of inactivity, requiring re-authentication for access renewal.
3. **Exposure Center Configuration:** Configure the security dashboard to display identity-related exposures prominently, prioritizing remediation efforts based on the intersection of identity risk and critical asset proximity.
## Compliance Alignment
- **NIST Cybersecurity Framework (CSF):** Aligned strongly with the **Identify** function (e.g., Asset Management, Risk Assessment) and the **Protect** function (e.g., Identity Management and Access Control).
- **ISO/IEC 27001:** Directly supports requirements within Annex A (especially A.9 Access Control and A.12 Operations Security).
- **CIS Controls:** Addresses the importance of Control 4 (Access Control Management) and Control 5 (Account Management).
## Common Pitfalls to Avoid
- **Sticking to Reactive Auditing:** Avoiding the mistake of only reviewing identities *after* a breach or during annual compliance audits; this is inherently too slow.
- **Data Silos:** Failing to connect identity security data with broader vulnerability and attack surface data, leading to blind spots in attack path analysis.
- **Ignoring Non-Human Identities:** Focusing only on human user accounts while neglecting service accounts, secrets, and machine identities, which are increasingly targeted by attackers.
## Resources
- **Tenable One Exposure Management Platform:** For unifying visibility across Cloud, Vulnerability, OT/IoT, and Identity Exposure.
- **Cloud Infrastructure Entitlement Management (CIEM) Tools:** Required for managing cloud-native identity permissions risk.
- **Just-in-Time (JIT) Access Solutions:** Necessary for minimizing standing privileges.
- *To see specific platform capabilities in action:* Review resources mentioning guided demos of Identity Exposure capabilities.