On 11 December 2010, Gregory Perry sent an email to Theo de Raadt alleging that FBI had paid some OpenBSD ex-developers 10 years previously to insert backdoors into the OpenBSD Cryptographic Framework. Theo de Raadt made the email public on 14 December by forwarding it to the openbsd-tech mailing list and suggested an audit of the IPsec codebase.[55][56] Theo's response was skeptical of the report and he invited all developers to independently review the relevant code. In the week that has followed, no patches to that area of the code have appeared.