Terminal risk management

Needs: Supporter

Floor limit, random selection, velocity checking and the exception file.

This is a supporter feature. Create a free account, then try every supporter feature free for 7 days.

Sign in Create a free account See plans

The opening of the article

2.7 · Level 2 — the kernel

Terminal risk management (EMV Book 3 §10.6) covers the risks the terminal can see by itself: a large amount, a card that has been offline too long, a card on a list. It sets TVR byte 4 bits (and "new card" in byte 2) and the TSI bit "terminal risk management was performed". It is required when the AIP says so, and terminals usually perform it anyway.

In the full article

  1. Floor limit
  2. Random transaction selection
  3. Velocity checking
  4. Exception file
  5. Merchant forced online
  6. Worked example
The rest of the article opens with a supporter pass, which you can try free for 7 days.
An unhandled error has occurred. Reload 🗙

Rejoining the server...

Rejoin failed... trying again in seconds.

Failed to rejoin.
Please retry or reload the page.

The session has been paused by the server.

Failed to resume the session.
Please retry or reload the page.