A spiked collar that extends horizontally for up to 3 feet from the pole is an example of what kind of technology? and that no unauthorized person or malicious software has altered that data.

This technology is known as an anti-climb collar.

Spiked collars are used to protect equipment mounted on poles like CCTV or in areas where you can easily climb a pole over a security fence. This technology offers a very simple and practical solution to protecting poles against thieves and vandals.