More than 300 website addresses with names that disparage Bank of America Corp. executives and directors were registered on Dec. 17, in an attempt to protect those individuals, the Financial Times reported.

Domain names targeting Chief Executive Officer Brian Moynihan, Chief Financial Officer Charles Noski and board member Charles Rossotti were registered by MarkMonitor, a San Francisco firm that shields big companies’ identities, the newspaper said.

WikiLeaks founder Julian Assange has threatened to release a large cache of documents that will embarrass a big U.S. bank, widely thought to be Bank of America, the FT said.

While it’s common for companies to buy domain names to prevent critics from using them, the registration of so many is unusual, according to Andrew Allemann, the editor of Domain Name Wire, the newspaper said.