It destabilizes it to the extant that if a bunch of armchair politicos on HN can reason to the conclusion "The likeliest perpetrator is the United States of America," every nation's espionage organization can certainly find that conclusion too, and possibly act on it, for the purposes of framing the US for their own political reasons.

I'm reminded of the worm that was injected into NASA servers back in the '80s that eventually made its way into DOE servers (creating a possible nuclear crisis because the DOE deals with two things: energy policy and the posture of the American nuclear response system). Direct initial investigation pointed to the worm originating from servers in France, but further investigation revealed that those servers had been compromised, and the likely origin of the worm was hackers in the Australia / New Zealand area. The likeliest catalyst for the attack: France's blatant destruction of the Rainbow Warrior in a New Zealand harbor. The attack ended up serving two purposes: bloody the nose of the Americans, who were (in the eyes of the attackers) playing fast-and-loose with nuclear payloads on NASA missions; and if their antics were discovered, embarrass the French with how easily their servers had been compromised. Essentially, a double-"don't fuck with us" via cyberspace from the Aussies or New Zealand.

https://www.gutenberg.org/files/4686/4686.txt