Here's a much better source: https://www.bloomberg.com/news/newsletters/2022-04-20/an-underwater-hack-and-the-digital-ripple-effects https://www.bloomberg.com/n

Here's a much better source: https://www.bloomberg.com/news/newsletters/2022-04-20/an-underwater-hack-and-the-digital-ripple-effects https://www.bloomberg.com/news/newsletters/2022-04-20/an-und... in particular, it makes it clearer that this was a cyberattack, rather than a physical attack.