The only truly secure system is one that is powered off, cast in a block of concrete and sealed in a lead-lined room with armed guards. - Gene Spafford
Security is a delicate topic, most of the time neglected until it will hurt you very badly. It consists
of a set of practices to protect software against malicious attacks and risks, to have working
software under such potential risks.
The main focus is on reducing invalid inputs, avoiding corrupted data, system breaches, and loss of data.
Each application, especially the one connected to the internet need to prevent attacks towards them while
protecting customers' data and privacy.