The two companies said they have taken “appropriate action” to ensure that the unauthorized access by the Bloomberg employees did not continue.
The two media groups were tight-lipped about who the offending employees were or whether any disciplinary action has been taken against them.
Andrew Rashbass, chief executive officer of the Economist Group, said: "I appreciate the way Bloomberg have handled this. I have the highest regard for their journalistic ethics. I am confident that this conduct will not reoccur."
Norman Pearlstine, Bloomberg's chief content officer, said: "Bloomberg appreciates that the Economist Group brought its concerns to Bloomberg's attention, and is pleased that the parties were able to resolve those concerns in a professional and constructive manner."