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Network incident Wednesday 27th June 2018 08:30:39
The Proton network is under DDoS attack. We are working with upstream providers to mitigate the attack.
The Proton network came under DDoS on and off over a period of several hours. Our attack mitigation systems were able to block most of the attack, but there was intermittent downtime for some users. No data was lost and while some emails are delayed, no emails are lost. We will continue monitoring the situation and add additional DDoS hardening.