LineStar Integrity Services

LineStar Integrity Services, also known simply as LineStar, is a pipeline technology and services provider headquartered in the United States of America. The company focuses on delivering technological solutions and support services to operators of pipeline infrastructure, which forms a critical component of the nation's energy transportation network. As a provider in this niche, LineStar works with clients to monitor, maintain, and enhance the integrity of pipelines that carry hydrocarbons, water, and other fluids across geographic regions. Its offerings typically include inspection tools, data management platforms, and engineering consultancy aimed at ensuring safe and reliable pipeline operation. While the exact size of the workforce or annual revenue is not disclosed in the available sources, the firm's positioning within the pipeline services sector places it among the specialized vendors that support critical infrastructure operators. Being based in the United States situates it within a regulatory environment governed by federal and state pipeline safety agencies, which influences the standards and practices it must follow.

In April 2021, LineStar became the target of a ransomware attack carried out by the group known as Xing Team. The intruders exfiltrated approximately seventy gigabytes of internal data, encompassing emails, contractual agreements, proprietary software code, and sensitive human‑resources documents. Although the attackers leaked unredacted files on the dark web, the breach did not interrupt the company's day‑to‑day operations or affect customer services. LineStar responded by engaging third‑party information‑technology specialists and law‑enforcement personnel, and it informed employees about the potential exposure of personal information. The firm also publicly disputed attempts to equate the incident with other high‑profile pipeline ransomware cases. A subset of the stolen material was later released by the transparency collective Distributed Denial of Secrets, which omitted software vulnerabilities and personally identifiable information to reduce harm. The episode underscored the growing trend of ransomware actors indiscriminately targeting organizations within critical‑infrastructure sectors, highlighting the cyber‑risk profile faced by specialized service providers like LineStar.