Bloomberg

"Nearly one thousand Bloomberg terminal users participating in an anonymous chat room had their identities unmasked this week when a London investment company sent out a list of the participants — including names and employers — to people in the chat room, The Post has learned.The data breach, one of the largest ever for former Mayor Mike Bloomberg’s financial information company, led moderators to shut down the metal and mining chat, as well as two others — one that focused on macroeconomic data and another on energy, according to participants.But the effect of the "unmasking," as users have come to call it, is likely to be even greater than that as news of the breach is rippling throughout the company's 325,000 subscribers.But the effect of the “unmasking,” as users have come to call it, is likely to be even greater than that as news of the breach is rippling throughout the company’s 325,000 subscribers."