Looks like a run of cables we have on quite literally every single street in the country... Put on a high viz jacket and you could lift the access cover there and do whatever you want to all those cables carrying super secret data.
And even if they did tap into one of a million random fibre links, all they're going to see is a bunch of encrypted data streams, which they can completely ignore because the remarkably cheap cleaning company that services the target company's offices is bringing them the plaintext every evening.
Sounds like the usual yellow-peril paranoia.
They didn't. This room was missing from the filed plans.
What other purpose do you envisage for the sole secret room given it is near to the cables and nearer than any other room?
Come to think of it, my aunt's house has extensive cellars, including one back room used for storage that backs up onto the street where the local fibre link runs. Terribly clever of her ancestors to anticipate this when they built the place.
They said nothing.
> And it wasn't the "sole secret room", a large section of the plans were redacted
It was. The existence of the redacted rooms was not secret. Didn't need to be. None were adjacent to the cables.
Hi viz. There's your problem... totally solved by a private underground secret room just metres away.
The drawings show that a single concealed chamber will sit directly alongside fibre-optic cables transmitting financial data to the City of London, as well as email and messaging traffic for millions of internet users.