Warden v1.1.0 — EMV bank-card grading + UI fixes

Warden v1.1.0 — Access-card grader for Flipper Zero

Hold your own badge or card to the Flipper's back and Warden reads the technology, then hands back a plain-English A+ to F security grade with a one-tap risk breakdown.

✨ New in 1.1 — contactless bank cards, done right

• EMV payment cards are now recognised and graded A+ / Secure. Warden sends a single, read-only SELECT PPSE to tell a contactless bank card from a generic smartcard — it selects the payment directory only and never reads your card number, expiry or CVV.
• Any ISO-DEP smartcard now grades A / Secure ("real smartcard — not cloneable at this layer"), with accurate wording instead of a vague "depends on the applet."
• More robust detection: the EMV probe accepts real-world success replies (0x9000, 0x61xx, FCI 0x6F), and a fallback 4A re-read catches bank cards the sweep under-detects — without ever dropping a card to a wrong low grade.
• UI/UX polish: reworked the grade card and scan screen so nothing overlaps at 128×64.

What it grades

Technology	Grade
DESFire · Contactless EMV bank card	A+
FeliCa · ISO-DEP smartcard	A
Mifare Plus	B
ISO 15693 / iCLASS-class	D
Ultralight/NTAG · ST25TB · UID-only · Mifare Classic	F

📥 Install

1. Download warden.fap below.
2. Open qFlipper, connect your Flipper.
3. Copy warden.fap to SD Card / apps / NFC /.
4. On the Flipper: Apps → NFC → Warden.

Or build it yourself: ufbt launch.

Read-only by design — Warden never writes, never cracks keys, and leaves no trace on the card. Grade only cards you own or are authorised to test.

Built against official firmware fw 7 / API 87.1. MIT © at0m-b0mb.