Oscilloscope based extraction of Bitcoin PIN

… : Extracting the Private Key from a TREZOR Bitcoin Wallet with a $70 Oscilloscope « Adafruit Industries – Makers, hackers, artists, designers and engineers! … :

“Congrats to excellent work by Jochen Hoenicke on using an inexpensive oscilloscope to monitor the power drawn by a TREZOR bitcoin wallet to determine what data it was processing.“