Hackers compromised an employee of the data-protection company Cyberhaven and used the worker's access to potentially steal sensitive information from the firm's users, the company said in a statement distributed to customers and reviewed by Reuters. The hackers pushed a compromised version of Cyberhaven's Chrome browser extension to the company's users early on Wednesday, the statement said. The company urged affected customers to reset passwords and review their logs for malicious activity. It was not immediately clear when Cyberhaven distributed the statement. The California-based company, which lists major law firms and tech companies among its customers, did not immediately respond to a request seeking comment.