The old Kryptonite locks could be opened with a largish sized pen, that was an amusing discovery before it became common knowledge; then there was the freon trick, cool down the steel enough and it would shatter under a hammer, hopefully they’ve patched these old vulnerabilities as well.
Also, if they are as hard as it claims, then that suggests it may be brittle enough to shatter even without freezing, or that a diamond blade might do a better job than a lesser abrasive. Still, I’ve had enough bikes stolen that I support any and all efforts to slow them down.
