What is Secrets Sprawl?

Secrets sprawl is the uncontrolled spread of secrets – including API keys, passwords and encryption keys – across an organization's infrastructure, code repositories and communication channels. Instead of being securely stored in a centralized secrets manager, these secrets become fragmented when hardcoded into source code, shared in messaging platforms or scattered across endpoints. This creates an incomplete and largely invisible inventory of secrets that security teams cannot effectively monitor, rotate or revoke. As organizations scale, the number of secrets grows rapidly, increasing the risk of credential-based attacks and supply-chain vulnerabilities.

How secrets sprawl happens

Secrets sprawl typically results from the creation and distribution of sensitive credentials without consistent monitoring or control.

Creation and growth of credentials

Modern environments rely on both human users and Non-Human Identities (NHIs), including service accounts, bots and application workloads, that authenticate using secrets like API keys and tokens. As organizations adopt cloud-native architectures, the number of secrets grows quickly. Each new system, workload and integration requires authentication, expanding the attack surface and increasing the likelihood of unmanaged secrets. As organizations scale and adapt to machine identities, they inevitably face the risk of secrets sprawl.

Inconsistent handling and sharing of secrets

Even with security policies in place, developers and teams handle credentials inconsistently. One developer may store credentials locally, while another may hardcode them directly into source code or share them through messaging tools. When secure processes are less convenient than copying and pasting credentials, users will generally tend to prioritize speed over security. If users across multiple teams take the same approach to hundreds of services over time, this inconsistency leads to a widespread and unmanageable distribution of secrets.

Lack of centralized secrets management

Without centralized secrets management, organizations cannot accurately track where secrets are stored, who has access to them or how they're used. This lack of visibility makes it difficult to rotate or revoke credentials after a security incident or employee departure, forcing security teams to respond reactively instead of proactively governing their secrets.

Poor lifecycle management

In many cases, secrets are created for instant use but aren't properly maintained or removed once a project is completed. Unused or duplicated credentials may persist across multiple systems, increasing risk over time. If old or unused secrets aren't rotated or removed, access may be granted indefinitely to codebases, repositories or long-forgotten configuration files. Without defined lifecycle policies, organizations accumulate outdated secrets that remain accessible but unmanaged, further propagating secrets sprawl across systems.

Why secrets sprawl is dangerous

When secrets are widely distributed without oversight, the consequences can impact every aspect of an organization. Here are some of the main risks of mismanaged secrets:

Data leaks: If secrets are scattered across multiple systems and tools, there's a greater chance of them being exposed in a data leak. A single exposed secret can grant unauthorized access to sensitive data and critical systems.
System breaches: When secrets are poorly managed, they can become compromised and then used to move laterally across infrastructure and escalate privileges.
Decreased team productivity: Security and DevOps teams spend time tracking where secrets are stored and managing scattered credentials, rather than focusing on higher-priority tasks.
Compliance and financial consequences: Mismanaged secrets that lead to a breach can result in regulatory fines, incident response costs and legal liability. For organizations subject to PCI DSS, HIPAA or SOC 2, the inability to demonstrate controlled access to sensitive credentials is itself a compliance finding, independent of whether a breach occurred.
Reputational damage: A breach caused by mismanaged secrets can cause irreversible harm to an organization's reputation, especially where clients entrust sensitive data to third-party vendors. Losing customer trust, long-term partnerships and positive media coverage can affect an organization long after a security incident occurs.

Common examples of secrets sprawl

Secrets sprawl may appear in the following ways:

Hardcoded secrets in source code: Developers embed secrets directly into code, which then gets committed to a repository. In public repositories, this exposure is immediate and permanent unless the secret is rotated. In private repositories, it expands the blast radius of any compromise of repository access. Automated secret scanning tools can detect these exposures, but secrets already indexed by search engines or third-party scanners remain at risk even after deletion.
API keys stored in multiple places: As teams copy API keys into configuration files instead of injecting them at runtime, the same secret may exist in several locations at once. With no secrets management, organizations cannot know where each copy resides, so they cannot rotate secrets or revoke access.
Secrets exposed in CI/CD pipelines: When secrets are embedded into configuration files rather than injected at runtime, they become exposed to anyone with access to the repository. Secrets that appear in build logs or get passed to third-party CI integrations can be visible to anyone with pipeline execution access, even if they have no direct access to the underlying code.
Forgotten credentials: Secrets from old projects or former employees may remain active long after their original purpose, potentially causing harm since they are still accessible but fall outside active monitoring.
Duplicated secrets across systems: When the same secrets are replicated across multiple teams or environments, organizations cannot enforce consistent access controls.
Insecure sharing methods: Sharing secrets via messaging platforms or email prevents organizations from reliably tracking who has seen them, where they've been sent to or whether they've been stored insecurely by recipients.

How to reduce the risk of secrets sprawl

Reducing secrets sprawl requires centralizing how secrets are stored, accessed and managed. With a secrets manager, organizations can have greater control and visibility over their whole inventory of secrets.

Centralize secrets in a secure vault

Instead of allowing credentials to spread across files and repositories, organizations should store all secrets in a dedicated secrets manager. A centralized, secure vault provides organizations with a single location for storing, accessing and distributing credentials.

Enforce least-privilege access

Not every user needs access to every secret, so enforcing least-privilege access grants access to only the identities that require a secret for a limited time. This temporary and intentional access reduces the impact of a compromised credential by ensuring that even if a secret is exposed, the cybercriminal's access remains constrained.

Scan for secrets already in repositories

Centralization only works if existing sprawl is addressed first. Secret scanning tools can identify credentials already embedded in code repositories, configuration files and build artifacts. Organizations should run an initial scan before assuming their secrets are contained and set up continuous scanning to catch new exposures.

Automate credential rotation

Automated rotation ensures secrets are regularly updated without relying on manual processes that don't scale. It minimizes exposure windows and removes the operational burden of tracking rotation schedules across hundreds of credentials.

Improve visibility and auditing

Organizations should have a real-time inventory of secrets, including where they're stored and how they're used. This level of visibility allows teams to detect suspicious behavior, identify orphaned secrets and respond immediately to security incidents.

Define and enforce lifecycle policies

Establish clear policies for when secrets should be created, rotated and retired. Automate enforcement where possible. A secret that is no longer needed should be revoked, not just ignored.

Learn how Keeper helps organizations centralize and automate secrets management.