Security systems, including shields, adapters, and/or tools, for limiting access to a coaxial cable connector are provided. A shield comprises an outer shield configured to limit access to the coaxial cable connector. The coaxial cable connector comprises a fastener portion that is configured to be rotatable with respect to a body portion of the coaxial cable connector. The shield further comprises an adapter configured to be coupled to the outer shield. The adapter is configured to engage a side of the fastener portion of the coaxial cable connector. The adapter is further configured to engage a tool configured to rotate the adapter such that, when engaged with both the tool and the fastener portion of the coaxial cable connector, the adapter is configured to rotate the fastener portion of the coaxial cable connector upon rotation of the adapter by the tool.