Not really. If you are on a public network, your safest bet is to use the wired option with Vysor. If you absolutely need the ability to go wireless, go with AirDroid and create an account to use the HTTPS option that allows you to scan a QR code on your screen. By no means should you ever use the simple HTTP option at any point on a public Wi-Fi connection or even a local Wi-Fi network you don't personally control. It's very poor digital hygiene and could have unpredictable and severe consequences. Always use an encrypted connection in wireless networks!