Proton's centralized login system fails, taking down Mail, VPN, password manager, and crypto wallet simultaneously

Proton reported an outage at 15:35 CEST on July 10, 2026, affecting login across its entire service suite: Mail, Calendar, Drive, Pass, VPN, SimpleLogin, Wallet, and Lumo. The simultaneous failure across eight products signals a breach in the centralized authentication layer — the shared system all services depend on — rather than individual service problems. Users lost access to both passwords and email at once. Investigation was ongoing as of 15:42 CEST with no resolution reported.