This sounds like a quote from a really bad action movie where Duolingo is under threat from foreign hackers who wish to misinform the world's aspiring young linguists by changing the lessons, and the only way to stop them is through a rag-tag team of teen linguists who must infiltrate the main base to destroy the entire operation.
The app is slow after latest update. One has to wait so long after giving the right answer. It is not possible to access Duolingo from the laptop. Before this update, it was pleasure to learn. Now it is a bane. Hope you will look into my complaint.