Do you have a source or any proof for that allegation?
Probably should include a few excerpts to "illustrate", such as the lead in;
Hidden Over 2 Years: Dem Cyber-Firm's Sworn Testimony It Had No Proof of Russian Hack of DNC
By
Aaron Mate, RealClearInvestigations
May 13, 2020
...
CrowdStrike, the private cyber-security firm that first accused Russia of hacking Democratic Party emails and served as a critical source for U.S. intelligence officials in the years-long Trump-Russia probe, acknowledged to Congress more than two years ago that it had no concrete evidence that Russian hackers stole emails from the Democratic National Committee’s server.
CrowdStrike President Shawn Henry's admission under oath, in a recently declassified December 2017 interview before the House Intelligence Committee, raises new questions about whether Special Counsel Robert Mueller, intelligence officials and Democrats misled the public. The allegation that Russia stole Democratic Party emails from Hillary Clinton, John Podesta and others and then passed them to WikiLeaks helped trigger the FBI's probe into now debunked claims of a conspiracy between the Trump campaign and Russia to steal the 2016 election. The CrowdStrike admissions were released just two months after the Justice Department retreated from its its other central claim that Russia meddled in the 2016 election when it dropped charges against Russian troll farms it said had been trying to get Trump elected.
Henry personally led the remediation and forensics analysis of the DNC server after being warned of a breach in late April 2016; his work was paid for by the DNC, which refused to turn over its server to the FBI. Asked for the date when alleged Russian hackers stole data from the DNC server, Henry testified that CrowdStrike did not in fact know if such a theft occurred at all: "We did not have concrete evidence that the data was exfiltrated [moved electronically] from the DNC, but we have indicators that it was exfiltrated," Henry said.
...
CrowdStrike, the private cyber-security firm that first accused Russia of hacking Democratic Party emails and served as a critical source for U.S. intelligence officials in the years-long Trump-Russia
www.realclearinvestigations.com
Yea I know, one has to read three paragraphs ^^^ to get some truth here.