Alan Cox, one of the most respected figures in the UK open source community, has warned of complacency over the security of open source projects.
Speaking to delegates at London's LinuxWorld conference on Wednesday, he emphasised that considerable sums of money were being spent to try and hack into open source systems.
And he cautioned that many open source projects were far from secure.
"There is a lot of money going into security, but the situation is worse because there is a lot of money going into breaking security. People are being paid to work, breaking down software systems," Cox, who is employed by Red Hat, told delegates.