Probably. But what would the cable operator do about it? Even assuming they could locate the section of cable that sent down, sending a ship out to it and eithe

Probably. But what would the cable operator do about it? Even assuming they could locate the section of cable that sent down, sending a ship out to it and either sending divers down or (more likely) hoisting the cable up for inspection would be incredibly expensive. Edit: And if they did somehow find a tap, its hard to know what they would they do then. Snip it off and trigger an 'incident', or leave it in-place and forget they ever saw it. My guess is that the share holders would rather didn't look in the first place.