[Blog](/blog) Show links Resources [Blog](/blog) [Breaches](/breaches) [eBooks, reports, & more](/resources) [Events](/events) [News](/news) [Attack Surface Management](/category/attack-surface-management) Show links Categories [Attack Surface Management](/category/attack-surface-management) [Company News](/category/company-news) [Compliance and Regulations](/category/compliance-and-regulations) [Cybersecurity](/category/cybersecurity) [Data Breaches](/category/data-breaches) [DevOps](/category/devops) [Human Cyber Risk](/category/human-cyber-risk) [Risks and Vulnerabilities](/category/risks-and-vulnerabilities) [Third-Party Risk Management](/category/third-party-risk-management) [Vendor Risk Management](/category/vendor-risk-management) [Don’t Use Production Data In Your Test Environment: The Impact Of Leaked Test Credentials](/blog/dont-use-production-data-in-your-test-environment) Publish date October 13, 2026 {x} minute read # Don’t Use Production Data In Your Test Environment: The Impact Of Leaked Test Credentials [Get a demo](/contact-sales) [Free trial](/demo) [Download the PDF guide](/resources/the-lean-security-teams-playbook-for-dark-web-incident-response) [Free trial](/demo) Written by [Kaushik Sen](/team/kaushik-sen) Chief Marketing Officer Kaushik has a background in software engineering, enterprise solution architecture, and data analytics. He brings a unique, data-driven perspective to cybersecurity education. Reviewed by [Abi Tyas Tunggal](/team/abi-tyas-tunggal) Writer and Senior Product Manager at UpGuard. Abi's work has influenced leaders across cybersecurity, technology, and financial services. Table of contents Whitepaper The Lean Security Team's Playbook for Dark Web incident Response Free resource ### The Lean Security Team's Playbook for Dark Web incident Response [Download now](/resources/the-lean-security-teams-playbook-for-dark-web-incident-response) To deliver technology products and services, companies use multiple technology environments so that changes, updates, and testing can be completed in a controlled way without interrupting customer experience. This is a best practice approach that maintains high levels of system stability, uptime and security. These “non-production”, or test environments should ideally be completely disconnected from production environments to prevent security incidents and bugs. In fact typically, a company's test environments are only known about internally and not at all revealed to the public. However, in our security research, we often find exposed credentials to test environments, which can lead to far more serious consequences. ## How Test Credentials Can Be Misused Despite not being associated with production environments, test credentials should be protected as if they did. There are several ways non-production environments can overlap with production, provide a gateway into production systems, or simply be the source of a major breach. Attackers utilize stepping stones to gain greater access to systems within an organization, either via technology or [social engineering](/blog/social-engineering). Each foothold provides more information and more access to valuable data and resources.\ \ **A simple scenario that illustrates the risks:** an attacker uses leaked test credentials to access your test environment. They find a trove of production data that has been loaded into the test environment to help with debugging a complex issue, as your support team determined that the issue could not be easily replicated with faked data. This data includes customer information, and the exposure leads to a massive [data breach](/blog/data-breach) that hurts your company’s reputation and results in a regulatory fine. ## Ways To Securely Manage Risk From Test Credentials Breaches like this occur [all the time](https://www.enterprisetimes.co.uk/2018/04/05/shutterfly-reacts-to-data-breach/). However, you can take steps to reduce your risk, and also decrease the impact in case your company is breached in this way.\ \ **Test environments should always use different credentials from production,** so that even if leaked, test credentials simply cannot be used to access production.\ \ **Test credentials should follow **[**the principle of least privilege**](/blog/principle-of-least-privilege), so attackers could only use test credentials to have limited access to your test environment and nothing else.\ \ **Enable multi-factor authentication (MFA) in test environments**, to create another line of defense to hold back an attacker from accessing your systems.\ \ **Avoid using real (production) data in your test environments, and sanitize it if you must.** It can be challenging to simulate real-world conditions in test environments, especially when debugging complex issues that depend on large datasets to replicate. For this reason, production data is sometimes loaded into test environments. Production data can be sanitized before being important into test environments. Better yet, use or develop tools to generate fake data for your test environments. **Implement technical controls, such as network segmentation.** Even though an environment may be for testing or development, it still reveals a great deal about how digital business is done for an organization. This system information is invaluable to attackers, as it can help to pinpoint [vulnerabilities](https://www.upguard.com/blog/vulnerability) and assists in [social engineering](/blog/social-engineering) attempts by making the attackers better informed. Although this control is not strictly related to test credentials, robust [network security](/blog/network-security) is a must for preventing and containing this type of breach. ## Vendor Risk from Poorly Secured Test Credentials In addition to managing the risks posed by your own people and technology, you should also consider your [third-party vendors](/blog/third-party-vendor) and their approach to managing test environments. Your vendors could expose your company to the risks highlighted in this article in a number of ways: * By exposing test credentials to **their systems.** * By exposing test credentials to **your systems.** * By exposing test credentials to **their vendors systems.** This is [fourth-party risk](/blog/what-is-fourth-party-risk). You should ask your third-party vendors to implement strong controls, and verify that they do using [security questionnaires](/blog/planning-your-vendor-security-assessment-questionnaire). You should also [monitor your vendors](/blog/what-are-security-ratings) in case of a degradation in their [security posture](/blog/security-posture), or a breach. **Otherwise your risk is as good as their risk.**\ \ Test credentials are just one type of data breach we often see caused by companies and their third-party vendors.  This article is one of a 6-part deep-dive series on different types of data breaches that we've seen from third-party vendors. [Click here to read more in this series.](/blog/vendor-risk-impact-of-data-leaks-by-your-third-party-vendors) Whitepaper The Lean Security Team's Playbook for Dark Web incident Response Free resource ### The Lean Security Team's Playbook for Dark Web incident Response [Download now](/resources/the-lean-security-teams-playbook-for-dark-web-incident-response) ## Related posts Learn more about the latest issues in cybersecurity. Attack Surface Management #### [Find Out if You're Exposed on the Dark Web](/blog/find-out-if-youre-exposed-on-the-dark-web) Answer 5 quick questions to predict what a dark web scan will find about your company. Then run the free scan to see your real exposure. [](/team/lance-turner) [Lance Turner](#) October 14, 2026 Data Breaches #### [Your First Dark Web Scan Report, Explained](/blog/your-first-dark-web-scan-report-explained) You scanned your domain. What do the results mean? [](/team/lance-turner) [Lance Turner](#) October 13, 2026 Cybersecurity #### [12 Cybersecurity Horror Stories of 2026 (No Costume Required)](/blog/cybersecurity-horror-stories-2026) A warning ignored once becomes a headline. Read more about these 12 real 2026 cybersecurity incidents, and the sign each one gave before it made the news. [](/team/revashni-moodley) [Revashni Moodley](#) October 14, 2026 Data Breaches #### [Good Security Rating? Your Dark Web Exposure Says Otherwise](/blog/good-security-rating-your-dark-web-exposure-says-otherwise) Scan your domain to see just how exposed you are on the Dark Web. [](/team/lance-turner) [Lance Turner](#) October 13, 2026 Cybersecurity #### [Left Unsupervised: 10 Times Access Outlived Its Authorization](/blog/10-times-access-outlived-authorization) Access granted once shouldn’t mean access forever. Read more on how unmonitored access caused 10 of these real-life breaches and what they taught us. [](/team/revashni-moodley) [Revashni Moodley](#) August 25, 2026 Cybersecurity #### [Surviving a LockBit Ransomware Attack: The ROI of Visibility](/blog/surviving-a-lockbit-ransomware-attack) Read how veteran CISO Nick Gicinto saved his alma mater from a LockBit ransomware attack by discarding the standard playbook. [](/team/nicholas-sollitto) [Nicholas Sollitto](#) June 1, 2026 [All posts](/blog) Experience superior visibility and a simpler approach to cyber risk management [Get a demo](/contact-sales) [Free trial](/demo)