Former COO Travis VanderZanden is being taken to court for breach of his confidentiality agreement and fiduciary duty weeks after the executive joined Uber.

A year-and-a-half, Lyft acquired VanderZanden’s Cherry venture, an on-demand car wash startup. Due to his previous operational experience, VanderZanden was installed as COO and helped lead the company’s strategic roadmap as it expanded into a number of new cities over the course of the following year.

VanderZanden left Lyft in August after reported tensions with company founders John Zimmer and Logan Green. Several months later VanderZanden landed at Uber, where he was hired to aid with the company’s international growth.

Before that, however, Lyft claims the former executive copied a treasure trove of confidential information on his way out the door. By doing so, Lyft alleges VanderZanden has breached the confidentiality agreement he signed at the time he joined the company.

“We are disappointed to have to take this step, but this unusual situation has left us no choice but to take the necessary legal action to protect our confidential information. We are incredibly proud of the dedicated and people-powered culture that we’ve fostered to support drivers, passengers and the entire Lyft community and we will not tolerate this type of behavior.” –  said a Lyft spokesperson.

While this two companies battle over data ownership, Universal Taxi is preparing to release its new Mobile Booking Application.

Here’s Lyft’s complaint against VanderZanden: 

Lyft Complaint Against VanderZanden

Stay tuned for more updates!