Update mfc_notes.md

Signed-off-by: Oleg Moiseenko <807634+merlokk@users.noreply.github.com>
2026-05-12 11:18:11 -07:00 · 2023-11-21 22:00:59 +02:00
parent 3a612dead9
commit 43f64887f7
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@@ -43,3 +43,7 @@ The nonce is just the same for each auth with the same parameters.

 Vulnerable:
 1. decode card-reader trace
+
+## reader-only attack
+
+The readers have a random generator bug. With it, we can recover a key for the sector it tries to authenticate.