Magento is one of the most popular open-source eCommerce platforms and it is used by thousands of merchants worldwide. It provides a variety of enterprise-class features, but one thing that makes Magento a favorite over its competition is the security. To resolve a variety of security issues, Magento support releases security patches that should be applied to the Magento installation. Today, we are going to show you how to apply and revert a Magento security patch on a Linux VPS.