The phrase "are especially unprotected" is correct and usable in written English.
It can be used to describe a group or situation that is particularly vulnerable or lacking in protection.
Example: "Children in conflict zones are especially unprotected and in need of urgent assistance."
Alternatives: "are particularly vulnerable" or "are notably defenseless".
Presently, the majority of Sumatran tigers occur within large tracts of primary forest, but these extend outside of the island's protected area borders, and these unprotected forests are especially at risk from the high levels of deforestation in Sumatra.
In this environment, an unprotected computer is especially vulnerable to online attacks.
The sun in Florida is especially powerful and will burn unprotected skin within a matter of minutes, especially during the summer and when the sun is directly overhead and at its strongest.
All of these attacks could easily be executed on public or unprotected Wi-Fi networks, so you should be especially careful when using such services, refraining from sharing sensitive data over them.
A patient with an attachment to, for instance, the Green Bay Packers may be especially symptomatic if he or she sees the team's quarterback running unprotected with the ball, especially if that quarterback has suffered previous concussions.
The HIV risk is especially heightened because masculinity sexual norms encourage men (husbands) to engage in unprotected intra- and extramarital sex.
The HIV risk is especially heightened because masculine sexual norms encourage men [husbands/partners] to engage in unprotected intra- and extramarital sex.
This is especially important in coarse-textured soils where large SOC stocks may be present in physical fractions that are relatively unprotected from decomposition.
However, such analyses can be confounded by "seroadaptation"—the restriction of unprotected anal intercourse (UAI), especially unprotected insertive UAI, to seroconcordant partnerships.
While this shift represents nominally better policy, it preserves the ban's core problem: the fact that the FDA is targeting a high-risk group (men who have sex with men) instead of high-risk behavior (unprotected sex, especially unprotected receptive anal sex, with multiple partners -- regardless of the gender of those involved).
