The Evolution of Exploit Sophistication

http://en.wikipedia.org/wiki/Adobe_Systems

When we look at the exploits that Adobe patched from February and March of this year, it is clear that today’s zero-day exploits are increasingly more sophisticated. This increase in sophistication is not limited to the skills needed to find and exploit the vulnerability. The code used to exploit the environment is also more robust in terms of code quality and testing. In short, exploit creation today requires the same level of rigor as professional software engineering projects.

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Story added 5. April 2013, content source with full text you can find at link above.