Regulators world-wide should consider subjecting asset managers to stress tests, a top Bank of Italy official said, adding to the chorus of bank authorities flagging nonbank risks.

Daniel Tarullo, the former US Federal Reserve governor most responsible for crafting post-financial crisis Washington policies, said a cyberattack on a bank could set off widespread panic by eradicating ownership records held by the institution.

Berkshire Hathaway Chief Executive Warren Buffett said the conglomerate will likely increase its stake in Wells Fargo and other banks if the US Federal Reserve finalizes a proposal to ease a current restriction on bank investors.

The proposed merger of Fidelity National Information Services and Worldpay will further consolidate debit processing, a key function in the payment ecosystem.

Activist investor Jana Partners reduced its stake in Jack in the Box by almost half, according to a securities filing today.