Young hacker smiling
Computer with four padlocks, one unlocked

Dude, where’s my XSS protection?

Solving Halls of Valhalla Challenge: XSS4
Quill icon Juan Aguirre   Folder icon challenges   Tag icon xss,  web,  protect,  challenge

Web application security is a major concern nowadays. You have to make sure your application is secure, especially if you have a lot of users. There are many controls a developer can implement to attempt to make the site safer. Or so they think. The fun of hacking is looking …



Pyramids in the desert

Types of triangles

Solving CodeAbbey Pythagorean Theorem challenge
Quill icon Jonathan Armas   Folder icon challenges   Tag icon pythagoras,  code,  challenge,  solve

A triangle is a 3-sided polygon sometimes (but not very commonly) called the trigon. Every triangle has three sides and three angles, some of which may be the same. The sides of a triangle are given special names in the case of a right triangle, with the side opposite the …



Magnifying glass finding password in a set of binary data

Storing passwords safely

Solving Yashira hash challenge 3
Quill icon Jonathan Armas   Folder icon challenges   Tag icon password,  security,  challenge

By the end of the year, we witnessed a huge increase in the amount of attacks that extracted large quantities of personal information, emails and passwords. Even one of the biggest email services, Yahoo, suffered an attack by cyber-criminals and they robbed more than 500000 accounts, in doing so, accessing …



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