Stopping Privilege Escalation: How to Neutralize Stolen Credential Threats

Credential abuse remains the most common initial access vector for data breaches, but the real danger comes after initial access. Privilege escalation can turn a single compromised user account into a business-disrupting breach. And while many security teams focus on detecting suspicious activity once it’s underway, far fewer are designing architectural friction to stop privilege escalation from working in the first place. 

Preventing privilege escalation and taking the power away from stolen credentials requires a multi-layered strategy combining tightly coupled network- and identity-driven controls. Let’s explore a comprehensive overview of attackers’ favorite privilege escalation techniques and practical tips for blocking them.  

What is Privilege Escalation in Cybersecurity?  

Privilege escalation is the technique an attacker uses to gain higher-level permissions on a network, enabling access to systems, data, or actions that should be restricted. According to MITRE, “Adversaries can often enter and explore a network with unprivileged access but require elevated permissions to follow through on their objectives.” 

Threat actors may rely on stolen credentials, take advantage of misconfigurations, or exploit vulnerabilities to escalate privileges. With elevated permissions, attackers can:  

• Disable security controls 
• Access sensitive data or administrative interfaces 
• Create new accounts or deploy persistence mechanisms 
• Move laterally across the environment without triggering alerts 

In other words, privilege escalation is how adversaries parlay a foothold into control.  

How Privilege Escalation Works  

Privilege escalation doesn’t happen in isolation – it’s one step in a broader attack chain that begins with initial access. Since cyber attackers opt for the path of least resistance, they typically breach low-level accounts that are easier to hijack.  

With this initial foot in the door, adversaries will typically perform reconnaissance as they search for ways to complete vertical privilege escalation by either:  

• Elevating the privileges of the account they initially breached, or  
• Gaining access to another, more privileged account  

What makes privilege escalation especially dangerous is that it often relies on legitimate functionality with inherent but unseen risk; misconfigured permissions, overly permissive service accounts, inherited trust relationships, or weak segmentation between users and systems. These present low-hanging fruit for attackers on a mission to escalate privileges.  

Vertical vs. Horizontal Privilege Escalation  

Privilege escalation strategies generally fall into two categories:  

• Vertical privilege escalation: The attacker gains higher-level permissions by targeting privileged accounts with admin or root access. This allows threat actors to modify critical configurations, elevate additional accounts’ permissions, or otherwise compromise system integrity and availability.  
• Horizontal privilege escalation: The attacker accesses another account at the same privilege level, allowing them to move laterally across the network. While this approach doesn’t grant attackers new permissions, it exposes additional systems and data and enables the spread of ransomware. For example, an attacker might hijack multiple user accounts in a healthcare platform during horizontal privilege escalation, exposing exponentially more sensitive patient data without raising permissions.  

Common Privilege Escalation Techniques and Attacks in 2026 

Amid a rapidly evolving threat landscape, fundamental privilege escalation techniques remain largely consistent. Attackers rarely rely on a single exploit or dramatic vulnerability. Instead, they exploit ordinary access, excessive trust, and architectural gaps that allow legitimate credentials to be used in unintended ways. 

What makes these techniques so effective? They often operate entirely within the bounds of normal system behavior.  

7 Techniques Attackers Use to Escalate Privileges  

Privilege escalation techniques should be understood as categories of attacker behavior rather than isolated tactics. The MITRE ATT&CK framework outlines more than a dozen privilege escalation techniques (and several dozen sub-techniques) – many of which overlap with other tactics.  

In other words, attackers are opportunistic – they mix and match approaches to achieve different objectives in different environments, but some of the most common privilege escalation techniques include:  

1. Credential and authentication material abuse: Attackers steal credentials, hashes, Kerberos tickets, or authentication tokens from memory, disk, or active sessions. Rather than cracking passwords, they reuse valid authentication artifacts to impersonate higher-privileged users or services. 
2. Permission exploitation and role misconfigurations: Excessive group memberships, inherited permissions, or misapplied role-based access controls allow attackers to perform privileged actions without exploiting a vulnerability. Over time, these misconfigurations create silent escalation paths that appear legitimate. 
3. Service account and machine identity abuse: Service accounts frequently run with elevated privileges, interact across multiple systems, and lack strong monitoring or rotation controls. Once compromised, they enable privilege escalation that blends seamlessly into normal operational traffic. 
4. Token impersonation and delegation abuse: Improperly configured delegation or trust relationships allow attackers to act on behalf of more privileged users or services. This enables escalation without changing account permissions or triggering access reviews. 
5. Local privilege escalation on individual systems: Attackers exploit weaknesses in local configurations, drivers, scheduled tasks, or system services to gain admin control over a single host, which offers a launchpad for broader credential harvesting and escalation. 
6. Abuse of trusted execution paths: Administrative ports, remote management protocols, and legacy interfaces often assume trust once authentication succeeds. Attackers leverage these trusted pathways to execute privileged actions that security tools may not flag as anomalous. In fact, 71% of threat activity flows through just four protocols.  
7. Exploitation of security boundary gaps between identity and network controls: When identity systems grant access without network-level enforcement, or networks allow broad internal access once a user is authenticated, attackers exploit the gap to quietly escalate privileges.  

Why Traditional Defenses Don’t Stop Privilege Escalation Attacks 

Organizations may attempt to address privilege escalation through privileged access management tools, monitoring and analytics, and endpoint detection and response.  

While valuable for governing access events, this strategy typically cannot control access pathways. In other words, traditional strategies don’t create the architectural friction needed to stop privilege escalation – they might challenge how elevated access is granted and offer visibility into privileged activity, but they lack control to effectively limit where privileged identities can go.  

How to Prevent Privilege Escalation  

With identity-based attacks accelerating, third-party and supply chain risks on the rise, and sophisticated social engineering campaigns spreading, the uncomfortable reality is that credential abuse will continue to happen. For security leaders, the key is ensuring that even valid credentials lead attackers to a dead end.  

Tightly Couple Identity and Network Enforcement  

When identity governs reachability at the network layer, security teams can build a multidimensional defense against privilege escalation. Identity-based microsegmentation enforces granular access controls for every network asset and identity, effectively locking down every axis of unpermitted traffic – even when attackers leverage valid credentials.  

According to Chris Turek, CIO at Evercore, this combined approach unlocks a new sphere of security capabilities:  

Eliminate Unused Identities and Unnecessary Permissions   

Dormant accounts and outdated permissions are a silent liability, opening up a hidden pathway for privilege escalation. For example, just 2.6% of workload identity permissions are actually used, and 51% of workload identities are completely inactive. Security teams can uncover these vulnerabilities by pinpointing all network assets and identities, then learning logon activities, account behaviors, and asset access patterns. Removing inactive accounts, excessive permissions, and similar security gaps makes it easier to protect against privilege escalation.  

Restrict Admin and Service Accounts to Operational Needs Only   

Effectively securing admin and service accounts is a persistent barrier to stronger network security for many organizations. This is particularly urgent as machine identities like service accounts – which are notoriously overprivileged and under-monitored – now make up over 70% of networked identities. Admin accounts with outstanding logon rights are another prime target for attackers looking to escalate privileges. Admin and service accounts should be limited to approved actions or required assets and logon types only, neutralizing the risk of credential abuse.  

Protect Privileged Protocols with Just-in-Time MFA  

Over two-thirds of all threat activity flows through just four privileged protocols: SMB, RDP, WinRM, and RPC.  When they remain open, attackers can easily traverse the network undetected, but statically closing these ports disrupts key operations. To stop privilege escalation via these admin highways (without blocking legitimate activity), close privileged by default and enforce just-in-time verification with network layer MFA to eliminate always-on access. The same approach should be leveraged any time privileged accounts attempt to access sensitive systems, adding more friction to escalation attempts.  

Automate Policy Creation and Enforcement  

Static policies are too brittle to effectively protect today’s dynamic enterprise environments. Policy creation, maintenance, and enforcement should be automated to ensure access policies don’t become outdated as network changes occur, leaving gaps for attackers to exploit. With deterministic, accurate automation, security teams can build a self-maintaining security posture that instantly contains every breach, regardless of the vector.

End Privileged Account Abuse with Zero Networks 

Zero Networks delivers identity-based microsegmentation that enables security teams to build proactive threat containment into their network architecture. In practice, Zero’s solution stops privilege escalation attacks by providing:  

• Immediate end-to-end visibility into every asset and identity on the network  
• Dynamic, identity-aligned policies based on observed behavior  
• Tightly coupled identity and network enforcement that proactively minimizes blast radius  
• Just-in-time network-layer MFA enforced at the moment of privileged access, only temporarily granting elevated permissions   
• Automated, adaptive enforcement that eliminates long-term operational debt while enabling teams to scale protection across production environments 

By knitting network- and identity-based controls into a single enforcement fabric, Zero neutralizes the threat of stolen credentials without adding operational complexity. As Benny Lakunishok, CEO and Co-Founder of Zero Networks, points out:  

Learn more about how Zero stops privilege escalation proactively – request a demo.