OAT-010 Card Cracking

Card Cracking is an automated threat. The OWASP Automated Threat Handbook - Web Applications (pdf, print), an output of the OWASP Automated Threats to Web Applications Project, provides a fuller guide to each threat, detection methods and countermeasures. The threat identification chart helps to correctly identify the automated threat.


OWASP Automated Threat (OAT) Identity Number


Threat Event Name

Card Cracking

Summary Defining Characteristics

Identify missing start/expiry dates and security codes for stolen payment card data by trying different values.

Indicative Diagram

Indicative diagram for OAT-010


Brute force attack against application payment card processes to identify the missing values for start date, expiry date and/or card security code (CSC), also referred to in many ways, including card validation number 2 (CVN2), card validation code (CVC), card verification value (CV2) and card identification number (CID).

When these values are known as well as the Primary Account Number (PAN), OAT-001_Carding is used to validate the details, and OAT-012 Cashing Out to obtain goods or cash.

Other Names and Examples

Brute forcing credit card information; Card brute forcing; Credit card cracking; Distributed guessing attack

See Also


CAPEC Category / Attack Pattern IDs

  • 112 Brute Force
  • 210 Abuse of Functionality

CWE Base / Class / Variant IDs

  • 799 Improper Control of Interaction Frequency
  • 837 Improper Enforcement of a Single, Unique Action

WASC Threat IDs

  • 11 Brute Force
  • 21 Insufficient Anti-Automation
  • 42 Abuse of Functionality

OWASP Attack Category / Attack IDs

  • Abuse of Functionality
  • Brute Force Attack

Return to OWASP Automated Threats to Web Applications Project.