In my review of cryptocurrencies, I mentioned that Bitcoin Cash offers "relatively less security compared to Bitcoin".

What did I mean by that?

What are the various kinds of security that a cryptocurrency offers? How to enhance them and avoid compromising them?

I will address the following questions:

I argue that VPNs are bad for the user, especially if the user is a dissenter from the status quo.

On the surface, CDNs (Content Delivery Networks) present a great way of speeding up the loading of websites.

Without a CDN, requests take longer for users that are far away network-wise, but not a lot longer if users are near the server (perhaps on the same continent). Here are some …