That attack, along with several others that successfully targeted the Ivanti software, illustrate how private equity’s push into the cybersecurity market ended up compromising the quality and safety of some critical VPN products, Bloomberg has found. Last year, Bloomberg reported that Citrix Systems Inc., another top VPN maker, experienced several major hacks after its private equity owners, Elliott Investment Management and Vista Equity Partners, cut most of the company’s 70-member product security team fo ...