A small encrypted keycard, slightly bent and covered in scratches, once granting access to a high-security facility. Sci-Fi, Post-Apocalyptic.

A small encrypted keycard, slightly bent and covered in scratches, once granting access to a high-security facility. Sci-Fi, Post-Apocalyptic.

Embedded circuitry and glowing data matrix – Faint blue lines forming complex encrypted patterns. A small encrypted keycard, slightly bent and covered in scratches, once granting access to a high-security facility. Sci-Fi, Post-Apocalyptic.