Wireless sensor networks are infrastructure-less networks that had emerged from the development in the domains of communication, system-on-chip, and fabrication technologies, which in turn had fueled the cost-effective deployment of wireless sensor networks for a plethora of application scenarios. But, with the increasing number of application scenarios, the focus is gradually shifting to a very important question and that is, how secure are the deployed wireless sensor networks? A malicious neighbour node may hinder communication between a benevolent source and destination nodes by dropping the relay packets or by relaying the packet to other malicious nodes. Therefore, securing communication between nodes is an imminent area of concern. Through intensive research, one potent solution came in the form of the use of trust as a parameter to secure data traversing through wireless sensor networks. A comparative analysis of two prominent trust-based security mechanisms, viz. PeerTrust and linguistic fuzzy trust model is presented in this article. The two trust-based mechanisms are simulated to compare their accuracy and energy consumption for randomly deployed sensor nodes. The simulations were carried out employing TRMSim-WSN v0.5, a Java-based simulator.