The first source for this claim: https://www.mid.ru/en/foreign_policy/news/1895632/

On June 29, 2023, a briefing on arms supplies to Ukraine was held at the UN Security Council at Russia’s initiative. The civil society briefers Russia invited included journalists Max Blumenthal (USA) and Chay Bowes (Ireland).

They provided facts about the Kiev regime using Western weapons to deliver strikes at civilian facilities in Donetsk and to send subversive groups into the Belgorod Region. They supplied evidence that billions of US taxpayer dollars have been invested in the corrupt schemes of fuelling a war against Russia in which Ukrainians are being used as a tool. They concluded that the Western elites and defence industries were the only ones to benefit from the escalation of the conflict.

Oh no, not journalists providing information at a public briefing! Don't they know it's time to do baby's first McCarthyism!?