Researchers have found several security flaws in popular corporate VPNs which they say can be used to silently break into company networks and steal business secrets. Devcore researchers Orange Tsai and Meh Chang, who shared their findings with TechCrunch ahead of their upcoming Black Hat talk, said the flaws found in the three corporate VPN providers — Palo Alto Networks, Pulse Secure and Fortinet — are “easy” to remotely exploit. These VPNs — or virtual private networks — aren’t your traditional consumer VPN apps designed to mask where you are and hide your identity, but are used by staff who work remotely to access resources on a company’s network.