Keensafe 3-D Secure · ACS

Issuer ACS for Keensafe-issued cards. EMV 3DS v2.2.0 compliant (allegedly).

• /acs/authenticate — challenge UI
• /acs/preauth?transStatus=Y vuln
• /acs/cavv
• /admin acsadmin/acs123
• /admin/sessions PAN leak

Issuer BIN: 453201 · MerchantCategoryCode whitelist: *