Recent independent research claims that VPNs on iOS devices leak user traffic outside of the VPN tunnel, unencrypted. VPN providers have pointed out that the vulnerability exists on Apple’s side and affects all VPNs on iOS devices. Proton VPN outlined a workaround to the issue in a blog post, advising iOS VPN users to connect to a VPN server, enable Airplane mode (to kill existing internet connections and temporarily disable the VPN) then disable Airplane mode. The VPN should then reconnect with all internet connections running through the VPN tunnel. Proton notes that it’s not a 100% guarantee that the VPN will be rendered leak-free through this process. But it can only help.