The ability to mount removable media and encrypted containers is a convenient feature on any operating system, but giving users the ability to attach new storage devices to the system also introduces security holes. The OpenBSD team recently decided to remove the feature which allows non-root users to mount file systems. In the future, users who need to mount file systems will require special permission, possibly through the doas utility. A post on Undeadly reads: "The facility for allowing non-root users to mount file systems has been removed from OpenBSD-current due to security concerns. Specifically, the value of kern.usermount (as described in the mount and sysctl man pages) will be ignored in OpenBSD 6.0, and the kern.usermount system variable will be absent from later releases."