I love my Yubikey Neo and it's good to see one torn down and tested.<p>It's not surprising that the NEO board has 2 chips in standard QFN packages where as the earlier Yubikey exploited in [1] was a chip-on-board "package". I bet the earlier version are significantly cheaper. The "practically indestructible" comments are (admittedly) common sense.<p>Sounds like there aren't any exploits here (yet). Should some materialize as they have in the past [1][2], Yubico has always replaced my devices.<p>[1] <a href="https://youtu.be/_c1cx8F4-SM?t=37m9s" rel="nofollow">https://youtu.be/_c1cx8F4-SM?t=37m9s</a><p>[2] <a href="https://developers.yubico.com/ykneo-openpgp/SecurityAdvisory%202015-04-14.html" rel="nofollow">https://developers.yubico.com/ykneo-openpgp/SecurityAdvisory...</a>