There are some concerns regarding the security and privacy of Hola VPN. Since it operates as a peer-to-peer network, your device's IP address may be used as an exit node for other users' traffic. This means that your online activities may be routed through someone else's device, raising potential privacy and security risks. Furthermore, Hola VPN has faced criticism in the past for issues such as selling users' idle bandwidth. It's important to carefully consider these factors and the associated risks before using Hola VPN, especially if privacy and security are a top priority for you.