Mikko Hypponen is pacing back and forth on the stage, with his trademark dark blonde ponytail resting on an impeccable teal suit. A seasoned speaker, he is trying to make an important point to a room full of fellow hackers and security researchers at one of the industry's global annual meet-ups. 'I often call this 'cybersecurity Tetris',' he tells the audience with a serious face, reeling off the rules of the classic video game. When you complete a whole line of bricks, the row vanishes, leaving the rest of the bricks to fall into a new line. 'So your successes disappear, while your failures pile up,' he tells the audience during his keynote at Black Hat in Las Vegas in 2025. 'The challenge we face as cybersecurity people is that our work is invisible' when you do your job perfectly, the end result is that nothing happens.' Hypponen's work, however, has certainly not been invisible. As one of the industry's longest serving cybersecurity figures, he has spent more than 35 years...
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