The following is the June 25, 2024, Congressional Research Service In Focus report, Use of Force in Cyberspace.
From the report
Introduction
There are presently no internationally accepted criteria for determining whether a nation state cyberattack is a use of force equivalent to an armed attack, which could trigger a military response. Likewise, no international, legally binding instruments have yet been drafted explicitly to regulate inter-state relations in cyberspace. Self-defense and...
https://news.usni.org/2024/06/26/report-to-congress-on-use-of-force-in-cyberspace