Creator of AirGuard and co-author of PrivateDrop
Researcher, Secure Mobile Networking Lab · current
Alexander turned rigorous reverse engineering of Find My and AirDrop into protections real people use, including AirGuard, which warns Android users about unwanted AirTags. Research that ships as a free app for potential stalking victims is service, not just scholarship.
We built this from your public work because we think it deserves celebrating. You did not ask us to, so the only fair thing is that you decide what happens to it. Claim it and it is yours to edit. Ask us to change something and we will. Ask us to take it down and it is gone within 72 hours — free, no account needed, and nobody will try to talk you out of it.