ΘΩΡΑΚΙΣΜΕΝΕΣ ΠΟΡΤΕΣ
http://martinbguq503.yousher.com/what-would-the-world-look-like-without-8wrakismenes-portes-sxedia
It's been quite a while considering that we went over security doors, so we believed it was about time for a refresher. Let's begin by reminding ourselves what they are and why we need them. What is a security