The OpenBSD IPsec stack was audited, a few notable bugs were fixed, but no evidence of a backdoor was found. http://arstechnica.com/open-source/news/2010/12/op

The OpenBSD IPsec stack was audited, a few notable bugs were fixed, but no evidence of a backdoor was found. http://arstechnica.com/open-source/news/2010/12/openbsd-code-audit-uncovers-bugs-but-no-evidence-of-backdoor.ars http://arstechnica.com/open-source/news/2010/12/openbsd-code...