From Modem to Modern: Securing Remote Access for OT

Ayman Galal
3 min readSep 10, 2023

In today’s digital age, accessing resources from any corner of the globe has become routine and part of ways of working. However, securing remote access is an intriguing tapestry of innovation, challenges, and constant adaptation, from the early days of dial-up connections to today’s sophisticated Software-Defined Perimeters (SDP) and Zero Trust Access (ZTA).

The evolution can be traced back to when, in the 1990s, we relied on modems to connect remotely; then, in the 2000s, Virtual Private Networks (VPNs) marked a significant shift, providing…

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Ayman Galal
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Passionate about Cyber Security & Privacy