Russia now threatening Finland and Sweden if they join NATO

[crickets]

21. Others are thinking the same thing.

https://www.hstoday.us/subject-matter-areas/cybersecurity/anonymous-hackers-launch-cyber-ops-against-russia-claim-government-site-takedowns/

Hackers identifying with the Anonymous collective said tonight that they launched cyber operations that briefly took down some websites associated with the Russian government.

An Anonymous account on Twitter claimed that the group took down “the website of the #Russian propaganda station RT News | http://rt.com | in response to Kremlin’s brutal invasion of #Ukraine.” The site was back up a short time later.

The account also said it also knocked down Russian internet service providers Com2Com, PTT-Teleport Moscow, RELCOM, and Sovam Teleport. [snip]

Hackers were using the #OpRussia or #OpKremlin hashtags to announce actions against Russian sites, similar to the #OpISIS campaign that targeted the terror group’s wave of online propaganda and the #OpKKK campaign that targets white supremacists.

Doesn't sound as though their efforts are terribly effective, but the annoyance factor is there.

The trouble with any substantial cyberwarfare efforts coming from government sources is that Russia could retaliate very effectively. It's likely things would get ugly quickly.