The Kingston flash disk offers a secure, locked domain, as well a second unsecured one. The size of each domain may be managed with a slider control; as one gets bigger, the other of course gets smaller. Most notably, both domains may not be used at once: anyone who attaches to the secure domain loses access to the storage space in the other domain, and vice-versa. This requires the workaround of transferring data to another flash disk to enable simultaneous access. Logout is managed using a button in the root directory of the secure domain. But be careful: these access controls work only on Windows systems, not under either MacOS or Linux.