Java 7 Update 79 Link

For these admins, 7u79 is the "least bad" option. It has the final security patches before Oracle introduced the "revocation checks" that required constant online connectivity, which air-gapped systems cannot provide.

Java 8 Update 20 and above introduced even stricter security (the "Very High" level and the removal of the Java plugin from browsers like Chrome and Edge). java 7 update 79

To understand 7u79, we must rewind to the Spring of 2015. Java 8 had been out for a year, but enterprise adoption was glacial. Most Fortune 500 companies were still clinging to Java 7 (or even Java 6) because their proprietary applets, internal dashboards, and USB token drivers were written against an older runtime. For these admins, 7u79 is the "least bad" option