Hello there. I’am professor in the private lab, but I follow the high tech  progress also and always try to integrate it into my work. We usually use telegram to exchange useful files, reports with my colleagues ( in the private group chat). Sometimes this files may contain not patent, but revolutionary discoveries, so we need SECURITY. I know today telegram in totally insecure. Could you plz hint me on any alternative ways for files sharing for our lab?
Be so kind and contribute to science:)