Description
As you wander around your favorite conference, you notice a small device with a screen on the ANSSI stand. This device has two push-buttons: one to go to the next screen and one to increment a value on the PIN-code screen.
You take some photos of the screen as you press the first button.
Can you find the PIN code to unlock the device?
*Note: This challenge was available in person at leHACK 2024. We are offering a updated version for online solving. The final flag is the 4-digit PIN code.
First screen: QRCode
Second screen: emojis
Third screen: emojis
Fourth to sixth screen: PIN-code input
Last screen: “Bad PIN” message
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