Cable & fiber are both reliable forms of internet, but fiber is better for delivering the fastest speeds, especially for upload bandwidth. It’s also less prone to high-traffic slowdowns and is more secure than cable.
Tapping into a fiber optic internet cable to intercept data transmissions is incredibly difficult in comparison to a copper cable that’s used for cable internet. Fiber optic internet is ultimately more reliable than cable internet for the main fact that it does not utilize copper cable, which can wear down over time and decrease effectiveness.