Digital Fortress is written by Dan BrownDan Brown : `Film Executive Produced`: Angels & Demons. Angels & Demons is written by Akiva Goldsman
[Human]: Do you like Digital Fortress? [Assistant]: Yes I do. I am a huge fan of Dan Brown. Wasn't he the one that wrote The Lost Symbol and The Da Vinci Code? [Human]: Yes he also wrote Angels & Demons.  
I think he wrote Deception Point. Am I right?