Wireless Community Networks (WCNs) have become a viable option for underprivileged areas to have internet access. These networks are fundamentally open and decentralized since they are created by a community of users who contribute resources like bandwidth. The open architecture of WCNs and decentralized nature, and not having well defined regulation policies in place, necessitate addressing privacy and security issues around WCNs. Especially for sensing devices / applications that transmit large volumes of data, having strong security and privacy measures becomes essential. We are basing our research on the invited paper by Delphine et al., (2010) for taking the proposed solutions further