Itacaré has been developing rapidly in the last few years, and along with this growth have come challenges, among them crime. I particularly didn't feel threatened at any moment during my 15 days traveling solo in Itacaré, but as in any other place, I recommend that you always keep an eye on your belongings, don't leave them on the beach without supervision and if you're going to do hikes, try to do them in a group and plan to leave in daylight.