Okay so I did some security research today. Here's what I found. They are using the lightning network with Spark. I don't know much about it but I think nostr:nprofile1qqsra6eau98vt3yvd3xfl7qfprzpsctsa2ahfv4xwpd8mw0ejgkdv8spz9mhxue69uhkummnw3ezuamfdejj7qgkwaehxw309ajkgetw9ehx7um5wghxcctwvshsz9nhwden5te0dehhxarj9ekkjmr0w5hxcmmv9u54y69f is working on it.

I found an article from the lightspark website about Tether Integrating it and Tether has a substantial stake in Rumble.

I didn't find any security issues aside from this one we all know and love. 😉

https://nakamotoinstitute.org/library/trusted-third-parties/

https://www.lightspark.com/news/spark/tether-integrates-spark-into-wdk-ushering-in-a-new