Articles by Julian Bhardwaj
For over 12 centuries an intense battle has been fought between the code-makers and the code-breakers. But despite decades of cryptanalysis, there are many ciphertexts which have gone unsolved, leaving us in mystery.
Here's our top ten list, can you solve them?
A cipher is a method for encrypting messages to keep them safe from prying eyes. Here's our round-up of the top notable ciphertexts that have been cracked in the last five thousand years.
Hidden on the net is online content which is not so easily accessed, known as the Deepnet (also sometimes called Darknet, the Deep Web or Hidden Web).
Julian Bhardwaj takes us on a tour, and asks should computer users be allowed to remain anonymous online?
When you read a message in your inbox, should you trust that the information hasn't been tampered with or that it even comes from who it claims?
Do you always turn WiFi off on your smartphone before leaving the house or work? You might think there's no harm in having WiFi turned on but not connected to a network, but that's not necessarily the case.
Ransomware is malicious software that attempts to extort money out of unsuspecting users, but lately there has been a trend of a more sinister type of ransomware: crypto-ransomware.
Julian has been interning at SophosLabs for the last two months after getting involved with the Cyber Security Challenge. Here's his story.