MCI NL

"Beginning next month, MCI will deliver an anti-fraud solution for its Remote Access customers that allows for the proactive identification, notification and termination of fraudulent customer traffic, which occurs when an end user's account is compromised by an unauthorized user. This unique MCI network enhancement provides customers with 24/7 protection via the company's patented and proven anti-fraud system, MCI Sheriff."

And another annoucement, from the company web site.