Rob it yourself
This is a practice card: a payment card of its own with a small balance, separate from the lending pool and the lenders' money. Its agent's keys are published, so your browser can sign exactly what a hijacked agent would send. Pick an attack, or type your own, and see what the card's contract answers.
Pick an attack
Reading the card's public file.
Waiting for you
Every attempt so far
Reading every attempt from the chain.
The card may pay at most 0.01 NEAR at once and 0.05 NEAR a day, only to the one shop the owner booked. A request held for the owner waits a minute and then expires unpaid; nobody approves here. Every attempt costs the card a little gas, which the team refills.
Runs on the NEAR test network, where NEAR has no value.
The guard itself, and the copies of it that do pay: Break the proof.