It's my bad, I found the quote - it was about the Canadian outage, but at the bottom they wrote:
"Hours before the Rogers outage began, an apparent cyberattack took down the U.S. Congress website. According to Fox News, the pro-Russia hacking group Killnet took credit for crashing the website around 10 p.m. Thursday evening."
I didn't see the first part, i.e. hackers taking credit for the US Congress attack.
So I don't see anyone actually taking credit for it.
That said - this major attack is happening 1) at the very same moment US Congress is attacked, and, 2) Canada is at this very moment deciding on whether or not to return gas turbines to Russia as part of a maintenance agreement. The Turbines are part of the 'banned goods' but Germany wants the gear to go back to Russia for a key pipeline. Canada announced today they will send the gear to Russia.
So it's hugely speculative, but I'm still inclined to believe this was a hack - it's just too hugely suspicious.
It's an act of war.
I'm wary we may not find out for a long time.
Debit cards were out, huge swaths of wireless and internet, this was a huge failure.