If you read that article, they tested two unikernels and the key point was that unikernels don't implement security mechanisms present in a normal OS. This Linu

If you read that article, they tested two unikernels and the key point was that unikernels don't implement security mechanisms present in a normal OS. This Linux Unikernel, otoh, does not delete any of that security functionality. The boot up code is the same, it just calls a specific code instead of bringing up the general userspace. Unikernels and security don't have to be mutually exclusive.