Yesterday’s poor 30-year Treasury auction reverberated through the market but later in the day, many people were arguing that it should be ignored because a ransomware attack kept China’s largest bank — ICBC — out of bidding.

Yellen now says there was no impact on the Treasury market from the attack. Could she mean that there’s been no direct impact?

Whatever happened, US 30-year yields are back to where they were before the sale.

US 30s, 5 min chart

Source: https://www.forexlive.com/news/yellen-we-have-not-seen-an-impact-on-the-treasury-market-from-the-icbc-attack-20231110/