Besides that Signal illustrates why it's a good chat platform, this blog also describes in a general sense what the issue is around quantum and encryption, recommend reading https://signal.org/blog/pqxdh/ #signal #quantum #security #encryption
https://groups.google.com/a/list.nist.gov/g/pqc-forum/c/WFRDl8DqYQ4/m/MRa5O0CvAAAJ?pli=1