CCC Hackers hardhack DECT telephones

Sub Zero 992 writes: "Heise Security (article in German) is reporting that at this year's Chaos Communications Congress (25C3) researchers in Europe's dedected.org group have published an article (pdf) showing, using a PC-Card costing only EUR 23, how to eavesdrop on DECT transmissions. There are hundreds of millions of terminals, ranging from telephones, to electronic payment terminals, to door openers, using the DECT standard. Is this a security nightmare in the making?"