
Question: Why are the computers in the office on "our" side so outdated? Phones aren't, and we see computers elsewhere that are modern. People get visas to come through into the world as a whole, so they'll see technological differences there - why keep the office so behind the times?
Answer: Great question, this bothered me too. Throughout the series, both sides take extraordinary measures to protect their technologies, but several times allow people to enter on official visas with unsupervised access. This is a plot mistake.