Zscaler (NASDAQ:ZS) shares fell more than 4% on Wednesday after the company confirmed there is an ongoing investigation into a possible data breach. “Zscaler is aware of a public X (formerly known as Twitter) post by a threat actor claiming to have potentially obtained unauthorized information from a cybersecurity company,” the company said in a post on its website. “There is an ongoing investigation we initiated immediately after learning about the claims. We take every potential threat and claim very seriously and will continue our rigorous investigation. We will continue to investigate, monitor the situation and provide an update.” This is breaking news…