Anti-virus software company McAfee has taken extreme measures to voice its displeasure with Windows Vista. It claims Microsoft is not allowing McAfee, and other anti-virus developers such as Symantec, access to the Vista kernel in order to create their latest tools. A full-page ad in the Financial Times has McAfee CEO George Samunek saying "Microsoft is being completely unrealistic if, by locking security companies out of the kernel, it thinks hackers won't crack Vista's kernel. In fact, they already have."