The best security method for the Orbi router is to use WPA2 as it is the most current and secure protocol available. The router also offers WPA2-PSK [AES] and WPA-PSK [TKIP] + WPA2-PSK [AES] options for Wi-Fi security. By choosing WPA2, you can ensure that your network is protected from potential vulnerabilities. The Netgear Orbi range is a great choice for those looking for a mesh system that can provide fast and reliable Wi-Fi coverage throughout a large property. It is a tri-band mesh system that offers excellent performance and security.