Hello. Anthropic recently proposed letting roughly 70 additional companies and organizations use Mythos, which would have brought the total number of entities with access to about 120, WSJ reports, citing people familiar with the matter. 

White House officials told Anthropic they oppose the move because of concerns about security, the people said.

Some officials also worried that Anthropic wouldn’t have access to enough computing power to serve that many more entities without hampering the government’s ability to use it effectively, one of the people said. Read the full story.

Also today: 

• Data centers as critical infrastructure
• Crypto firms race to save hacked DeFi platform
• Simple scam cost one traveler $12,000

• Also during the hearing, participants asked Congress to reject White House efforts to further cut staff and funding from the Cybersecurity and Infrastructure Security Agency. CISA has lost nearly half of its resources under President Trump's second term. 
• Related from WSJ Pro: Federal Cyber Cuts Raise National Security Alarms

Crypto firms are racing to backstop the industry’s biggest decentralized lender after North Korea-linked hackers absconded with $190 million from the platform. Consensys and its founder Joseph Lubin, Circle Ventures and crypto billionaire Justin Sun are among those who have pledged funds to Aave, which held as much as $75 billion in deposits last year. (WSJ)

China-backed hackers early this year compromised the email of 68 officials at Cuba’s embassy in Washington, D.C., as the Trump administration blocked oil to Cuba, according to cybersecurity company Gambit. The hackers exploited known bugs in Microsoft Exchange email servers, Gambit said. (Bloomberg)

The WSJ Pro Cybersecurity team is Deputy Bureau Chief Kim S. Nash and reporters Angus Loten and James Rundle. Follow us on X @WSJCyber. Reach the team by replying to any newsletter you receive or by emailing Kim at kim.nash@wsj.com.