Cybersecurity

Linux Server Hardening

Everybody says that Linux is secure by default and agreed to some extend (It’s debatable topics). However, Linux has in-built security model in place by default. The default security offered by normal Linux distributions might not be enough for demanding server applications. So usually you need to tune Linux security setting up and customize as

Disobey.fi

I visited first Disobey.fi event on Saturday evening in Helsinki. Disobey.fi wish to encourage hacker culture, and bring together like minded individuals at a gathering to share information and to train the skills our adversaries use against us. The goal is to foster a vibrant community of makers, breakers and shakers. The event tries to

Cyber Attack Caused Massive Power Outage

Around two years ago I wrote at Terrorism and the Electric Power Delivery System posting that Electrical grid is said to be vulnerable to terrorist attack. I can agree that electrical power distribution network would be quite vulnerable if someone tries to sabotage it and knows what to do. I know this because I design