There was recently a suspicious faliure of the undersea cable between Norway and a key arctic satelite ground station.[1]

So I'm wondering, what would the consequences be if the Atlantic cables connecting Europe with America experienced a sudden faliure?

How much would it inhibit things like say Telegram within Europe?

Is there anything we can do to mitigate these risks?

[1]: https://www.thedrive.com/the-war-zone/43828/undersea-cable-connecting-norway-with-arctic-satellite-station-has-been-mysteriously-severed