vulnerable

Context: Scientists’ prognoses that there is worse to come, especially in vulnerable poorer countries, are also beginning to gain acceptance. Source: Monbiot, G. (Oct. 2006) //BBC Focus,// p84

Definition: a place, thing, or idea that is vulnerable is easy to attack or criticize

Eg：The fort was vulnerable to attack from the south. Their theories were badly thought out and very vulnerable to ridicule. (Source: Longman Dictionary Contemporary English (2005), Person Education Limited)