Bruce Schneier is the CTO of Counterpane Internet Security and the author of Beyond Fear: Thinking Sensibly About Security in an Uncertain World.
His recent article for Wired Magazine includes:
When technology serves its owners, it is liberating. When it is designed to serve others, over the owner's objection, it is oppressive. There's a battle raging on your computer right now -- one that pits you against worms and viruses, Trojans, spyware, automatic update features and digital rights management technologies. It's the battle to determine who owns your computer.