Card readers reject transactions (decline) when an incorrect or expired CAPK is used. The keys come from the Certification Authority Public Keys (CAPK), and they expire periodically. Chip cards contain the issuers private keys which need to be verified by the card issuer’s public keys during online authorization requests. Previously Visa extended the EMV Certification Authority Public Keys (CAPK) key’s expiration date from to 2022, which required a terminal software update. Merchants using the related desktop terminals, which typically require a manual download from the merchant acquirer to update, are unlikely able to get new updates due to the end of life process. A later blog post explained Verifone PCI 3 End of Life Terminals, which includes those and others. The old article referenced the VeriFone EMV Vx520, FD55, Vx510, Vx570, among other terminals. Computers cannot be upgraded at some point and neither can credit card terminals. With credit card terminal lifespans of about 5 years, primarily due to security enhancements, the answers are different in 2022. Afghanistan, Albania, Algeria, American Samoa, Americas, Andorra, Angola, Anguilla, Antigua and Barbuda, Argentina, Aruba, Asia, Australia, Austria, Azerbaijan Republic, Bahamas, Bahrain, Bangladesh, Barbados, Belarus, Belgium, Belize, Benin, Bermuda, Bhutan, Bolivia, Bosnia and Herzegovina, Botswana, Brazil, British Virgin Islands, Brunei Darussalam, Bulgaria, Burkina Faso, Burundi, Cambodia, Cameroon, Canada, Cape Verde Islands, Cayman Islands, Central African Republic, Chad, Chile, China, Colombia, Comoros, Cook Islands, Costa Rica, Cyprus, Czech Republic, Côte d'Ivoire (Ivory Coast), Democratic Republic of the Congo, Denmark, Djibouti, Dominica, Dominican Republic, Ecuador, Egypt, El Salvador, Equatorial Guinea, Eritrea, Estonia, Ethiopia, Europe, Falkland Islands (Islas Malvinas), Fiji, Finland, France, French Guiana, French Polynesia, Gabon Republic, Gambia, Georgia, Germany, Ghana, Gibraltar, Greece, Greenland, Grenada, Guadeloupe, Guam, Guatemala, Guernsey, Guinea, Guinea-Bissau, Guyana, Haiti, Honduras, Hong Kong, Hungary, Iceland, India, Iraq, Ireland, Israel, Italy, Jamaica, Japan, Jersey, Jordan, Kenya, Kiribati, Kuwait, Kyrgyzstan, Laos, Latvia, Lebanon, Lesotho, Liberia, Libya, Liechtenstein, Lithuania, Luxembourg, Macau, Macedonia, Madagascar, Malawi, Malaysia, Maldives, Mali, Malta, Marshall Islands, Martinique, Mauritania, Mauritius, Mayotte, Mexico, Micronesia, Moldova, Monaco, Mongolia, Montenegro, Montserrat, Morocco, Mozambique, Namibia, Nauru, Nepal, Netherlands, Netherlands Antilles, New Caledonia, New Zealand, Nicaragua, Niger, Nigeria, Niue, Norway, Oman, Pakistan, Palau, Panama, Papua New Guinea, Paraguay, Peru, Philippines, Poland, Portugal, Puerto Rico, Qatar, Republic of Croatia, Republic of the Congo, Reunion, Romania, Rwanda, Saint Helena, Saint Kitts-Nevis, Saint Lucia, Saint Pierre and Miquelon, Saint Vincent and the Grenadines, San Marino, Saudi Arabia, Senegal, Serbia, Seychelles, Sierra Leone, Singapore, Slovakia, Slovenia, Solomon Islands, Somalia, South Africa, South Korea, Spain, Sri Lanka, Suriname, Svalbard and Jan Mayen, Swaziland, Sweden, Switzerland, Taiwan, Tajikistan, Tanzania, Thailand, Togo, Tonga, Trinidad and Tobago, Tunisia, Turkey, Turkmenistan, Turks and Caicos Islands, Tuvalu, Uganda, United Arab Emirates, United Kingdom, Uzbekistan, Vanuatu, Vatican City State, Venezuela, Virgin Islands (U.S.Looking for solutions to fix CAPK errors on credit card terminals? In 2016, 3D Merchant blog explained about CAPK expired error messages on VeriFone EMV terminals and how to fix them.
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