what year did kryptonite recall the locks that were being hacked with pens?

Answer 1

That was in late 2004. Here's a CNN article about it,

"Kryptonite scrambles to find solution

Recall of flawed U-shaped locks could cost firms tens of millions of dollars, experts say "
http://money.cnn.com/2004/09/17/news/midcaps/kryptonite/