Glenn Lurie, a longtime telecommunications executive, resigned as CEO of Synchronoss amid allegations of personal misconduct. 

The cloud-based messaging and IoT vendor declined to share more details about the allegations, but the abrupt departure followed an investigation by the company’s board.

The company appointed Jeff Miller, its chief commercial officer, as interim CEO and said it will begin a formal search for a permanent replacement.

Lurie joined Synchronoss less than three years ago after the company was beset with accounting fraud allegations that resulted in a temporary suspension of the company’s public listing on the U.S. stock market. 

Synchronoss founder and former CEO Stephen Waldis and former CFO Karen Rosenberger were, in 2017, accused of fraudulently concealing the company’s worsening finances, inflating earnings guidance, and prematurely booking revenue.

The company also, during that year through an asset sale and subsequent acquisition, pivoted from handset activation to cloud-based messaging. Synchronoss won a contract last year with all of the nationwide U.S. mobile network operators to provide rich communication services (RCS) for their Cross Carrier Messaging Initiative. 

No details about the joint venture have been shared since it was announced almost a year ago. 

Lurie began his career in telecommunications at McCaw Cellular in 1990, landed at AT&T in 1994, and served many roles before leading the operator’s mobile division until 2017. 

Synchronoss said Lurie’s resignation is “not related to the company’s strategy, financial, or business performance. Given the expectation that all employees will respect Synchronoss’ values and adhere to the company’s code of conduct, the board has accepted [his] resignation.”

Company stock is down more than 10% since Lurie’s departure was announced.