Cybercrime is getting worse. And most businesses don’t know they’ve been hit until it’s too late. Fortunately, there are practical ways to safeguard sensitive data. On the morning of October 31, 2023, millions of Americans fell prey to a malicious Halloween trick when their critical personal information was hacked from the networks of Mr. Cooper, one of the nation’s largest loan servicers. Unauthorized access began as early as October 30 and continued through November 1 before Mr. Cooper—formerly Nationstar Mortgage—managed to contain the breach. Armed with the names, addresses, phone numbers, birth dates, bank account numbers, and Social ...