When looking for a new job while employed, can you presume that a job application will be treated confidentially by a prospective employer? I would think so but I don't have much experience job-hopping. It seems awkward to bring it up in a cover letter but I would hate for my current employer to get a phone call asking about my performance or something. It seems that most people in this situation wouldn't want their employer knowing that they're shopping around. Thoughts?