Claes Spett is an Penetration Tester And Security Researcher and he publishes his work on his personal blog.
He recently has published several blogs on:
RA-Agent (Remote access agent) project, Buffer overflow media player generator Designed to help in security assessment and security researching, Banshee Vulnerability, Spotify 0.8.2.610 (search func) Memory Exhaustion Exploit, Swedish Army Web Database - SQL Injection Vulnerability.
The terms information security, computer security and information assurance are frequently used interchangeably. These fields are interrelated often and share the common goals of protecting the confidentiality, integrity and availability of information; however, there are some subtle differences between them.
Just keep a close watch to his website as i believe he will provide the world some interesting information.
Follow him on twitter. (@Secrecon)