Alby offers a service for people without their own server by renting channel space from them. Thus, they have oversight. It’s somewhat similar to Phoenix, where you also pay to open a channel.

I use Alby with my own node, and there Alby works perfectly.

Thanks for confirming that. We got a similar message earlier this month and I just deleted it right away because i assumed it was a phishing attempt without checking the url. We use Alby never had issues before or got any kind of message like that b4.