There is an ongoing BGP hijacking incident impacting the ProtonMail network. Connectivity to all Proton services is being impacted to varying degrees. Telstra is announcing our 188.8.131.52/24 subnet without authorization.
User data is secure, but some users may have issues connecting to ProtonMail, and some incoming and outgoing emails will be delayed. We have contacted Telstra, but unfortunately because BGP has no verification nor safeguards, the fix must be made by Telstra (this is a critical flaw in BGP which runs the entire Internet).