For those interested in purchasing LRC tokens using the Loopring Wallet, it's crucial to understand the process thoroughly. Could you elaborate on the steps required to successfully make this transaction? Specifically, I'd like to know if there are any prerequisites, such as having a certain amount of funds in the wallet or connecting to a specific exchange. Additionally, is there a user-friendly interface to guide through the purchase, or is it a more complex process? Finally, are there any security measures that should be taken into consideration before initiating the transaction to ensure the safety of funds?