Over the past years, crowdsourcing has increasingly been used for the discovery of vulnerabilities in software. While some organizations have extensively used crowdsourced vulnerability discovery, other organizations have been very hesitant in embracing this method. In this paper, we report the results of a qualitative study that reveals organizational concerns and fears in relation to crowdsourced vulnerability discovery. The study is based on 36 key informant interviews with various organizations. The study reveals a set of pre-adoption fears (i.e., lacking managerial expertise, low quality submissions, distrust in security professionals, cost escalation, lack of motivation of security professionals) as well as the post-adoption issues actually experienced. The study also identifies countermeasures that adopting organizations have used to mitigate fears and minimize issues. Implications for research and practice are discussed.