6 Ways Shadow Access Creates Risk in Your Infrastructure

One of the most dangerous threats to your infrastructure lurks unnoticed: shadow access.

Shadow access can take many forms: privileged credentials left behind by former employees, shared keys embedded in code, or ad-hoc access granted outside of policy. These hidden risks can leave your organization vulnerable to breaches, compliance drift, and insider threats — all while remaining invisible to traditional security tools.

Shockingly, these risks may come as a result of your most tech-savvy users. Without easy, quick access processes in place, engineers and developers may seek alternate routes, via long-lived credentials, stale keys, and backdoor access paths. As your infrastructure continues to grow in size and complexity and the importance of engineering velocity increases, so too does shadow access.

In this blog, we’ll break down what shadow access is, where it comes from, and what it looks like. Then, discover how Teleport eliminates shadow access risks at their root causes to ensure all access to your infrastructure is trusted, effortless, and policy compliant.

What is “shadow access”?

Shadow access is the unauthorized or unmonitored access to infrastructure and applications, often resulting from the proliferation of unmanaged static credentials, such as shared SSH keys and hard-coded API tokens.

Shadow access is typically created (either intentionally or inadvertently) by engineers and developers who need quick, repeated access to a resource. This may involve using leftover SSH keys, long-lived credentials, or reusing undocumented backdoor access pathways. Whereas shadow IT might involve a rogue SaaS application, the consequences of shadow access are much, much more sinister.

At its worst, shadow access can provide direct and unmonitored access to sensitive databases, active Kubernetes clusters, or overly-privileged admin accounts. At its best, it is an unintended backdoor to your environment that you may never know exists — a leak in your security posture that could sink the entire ship if not sealed quick enough.

Simply put, shadow access causes teams to lose an accurate view into the security of their infrastructure — increasing the risks of a breach, the size of your attack surfaces, and severely complicating future compliance and auditing responsibilities.

The first step towards remediation? Understanding the root causes.

How does shadow access happen?

The “move fast break things” ethos fueling the past few decades of engineering breakthroughs has propelled technology to new heights. But in today’s world of increasing cyberthreats and compliance burdens, organizations have some cleaning up to do — and are forced to reckon with the unfortunate security consequences this pedal-to-the-metal approach has resulted in. Shadow access is one such example.

This need for speed hasn’t gone anywhere. Engineers are under greater pressure to deliver innovative new products, new services, and continue to drive business growth forward. As the importance of time-to-market steadily increases and competitive conditions rise, development timelines get expedited. At the same time, engineers and developers are expected to accomplish more with less resources.

Access friction, be it delays in request approvals or overly clunky credential workflows, can lead to risk. If engineers are unable to access the infrastructure resources they need, when they need them, they will find a faster way to sustain momentum and meet their goals (whether or not it violates policy). This is where risky workarounds like backdoor access, hardcoded credentials, and other shortcuts emerge.

For instance: a developer might spin up an unapproved cloud instance for testing; or, they might store a hardcoded database password in a script for convenience. Without a quick, easy-to-use infrastructure access solution in place, it can be difficult to uniformly enforce the controls and policies designed to mitigate these activities — especially as the size of your infrastructure expands. These shadow access pathways created by your well-meaning engineers are also primed to be exploited by ill-intentioned threat actors.

Examples of shadow access

Shadow access can take many forms. That’s what makes it so dangerous.

1. Static credentials

Enemy #1 in today’s security environment is static credentials. Secrets and credentials like passwords, SSH keys, and API tokens can be copied, shared, or forgotten, leading to hidden points of access. Since static credentials don’t expire automatically, they often stay active long far after they are needed. Without regular audits and rotation, these access points may remain open indefinitely — and even if they are detected, it may be impossible to determine what resources were accessed and what other activities took place.

2. Unmonitored accounts

Unmanaged or undocumented credentials, accounts, or permissions may go unnoticed, leaving critical blind spots in infrastructure security. Forgotten SSH keys, hardcoded API tokens, or old service accounts can stay active without security teams knowledge, or insight into who or why these accounts are being accessed. These credentials may never be rotated or removed, making them easy targets for attackers.

3. Unauthorized or over-authorized access

Shadow access bypasses formal governance processes, leading to unauthorized or excessive access to sensitive systems. Users may keep access to systems they no longer need if policies are not being properly tracked or enforced. Temporary admin access, granted for a quick task, might never be removed. Without proper tracking and policy enforcement, organizations simply lose control over who has access and when.

4. Circumvention of policies

Policies are only as strong as their enforcement. If given free reign, developers or engineers might create shadow accounts or credentials to bypass any perceived access bottlenecks, introducing unmanaged risks. A developer might keep a personal SSH key for easier logins. An employee might use a shared admin account instead of requesting temporary access. The list goes on. All of these actions might be invisible to infrastructure teams without the right monitoring and remediation capabilities.

5. Expanded attack surface

Unmanaged access points provide attackers with ample opportunity to exploit vulnerabilities, escalate privileges, or compromise sensitive data. If an attacker finds an entry point enabled by shadow access, they can essentially move through a system undetected with free reign over accessed systems. Without visibility and control, these weak spots remain open, increasing the risk of a breach.

6. No centralized oversight

Modern computing environments are complicated. It's difficult enough to achieve a unified view of infrastructure, let alone who has access, what they’re accessing, and whether it aligns with organizational policies. Multi-cloud, cloud-native, and ephemeral infrastructure elements crank the difficulty even higher. Without a centralized oversight to consistently track access patterns and activity, old accounts and unused keys might remain functionally active.

Discover and stop shadow access risks

Your engineers and developers need fast and frequent access to infrastructure. The business needs to maintain airtight security and ensure unwavering access policy enforcement. With Teleport, you can accelerate the velocity of engineering and development pipelines and increase the resiliency of your infrastructure, all at once.

Teleport identifies and mitigates risk created by shadow access through real-time monitoring, granular audit trails, and just-in-time access controls — ensuring all infrastructure access is intentional, temporary, and fully traceable, reducing the attack surface and preventing unauthorized access.

Unified cryptographic identity: Centralize a real-time inventory of all users, machines, workloads, and access points across the infrastructure. This eliminates the blind spots where shadow access can hide.

Elimination of static credentials: Replace passwords, SSH keys, and API tokens with short-lived certificates, removing a common source of shadow access vulnerabilities.

Identity security: Identify and mitigate risk in your access paths, locking down backdoors and eliminating undocumented or unauthorized access that can introduce risk and result in compliance drift.

Conclusion

Shadow access is a growing risk as your infrastructure expands, but it doesn’t have to be an inevitable one. Ensuring trusted access also doesn’t have to come at the cost of engineer productivity — or force engineers to make the choice between breaking policy or missing a deadline.

Learn more about how Teleport counters shadow access risks while increasing engineer velocity.

Learn More

Ready to get started?

Sign up for a free trial with Teleport to learn how to start eliminating the risks of shadow access and secure your growing infrastructure with zero trust, dynamic scalability, and powerful engineer productivity.

Get Started Today