OpenBSD's Theo de Raadt brought to light via an email from Gregory Perry, the former CTO of NETSEC, that the FBI paid several open-source developers to compromise the IPSEC stack. "the FBI implemented a number of backdoors and side channel key leaking mechanisms into the OCF, for the express purpose of monitoring the site to site VPN encryption system implemented by EOUSA, the parent organization to the FBI. Jason Wright and several other developers were responsible for those backdoors, and you would be well advised to review any and all code commits by Wright as well as the other developers he worked with originating from NETSEC."
This code has been in OpenBSD for a decade now, but Gregory Perry's Non-Disclosure Agreement with the FBI has finally expired, which is now allowing him to speak on the matter. Gregory also goes on with further details, "This is also probably the reason why you lost your DARPA funding, they more than likely caught wind of the fact that those backdoors were present and didn't want to create any derivative products based upon the same...This is also why several inside FBI folks have been recently advocating the use of OpenBSD for VPN and firewalling implementations in virtualized environments, for example Scott Lowe is a well respected author in virtualization circles who also happens top be on the FBI payroll, and who has also recently published several tutorials for the use of OpenBSD VMs in enterprise VMware vSphere deployments."
The email can be read here. This story is still developing.