"What do we know about the creators of CALKULATOR?" Peter said. "Well, it was a far more devastating virus than REAMDE because it infected anyone who used Outlook—whereas REAMDE is endemic to hard-core T’Rain users. For about a week, it was the virus du jour, it made quite a sensation, and there was a big law enforcement effort devoted to tracking down its creators. They weren’t nearly as clever about hiding their tracks as the Troll has been, and so it was eventually traced to a group in Manila."