ΠΟΡΤΑ ΑΣΦΑΛΕΙΑΣ
http://mariohswp881.withtank.com/how-did-we-get-here-the-history-of-told-through-tweets/
It's been quite a while given that we talked about security doors, so we believed it was high time for a refresher. Let's start by advising ourselves what they are and why we need them. What is a security door,