<A target="_blank" href="http://news.techworld.com/security/3205509/microsofts-calls-on-bug-exploits-worse-than-coin-toss/?olo=rss">If you toss a coin often enough the odds of getting heads</A> or tails work out about even. When Microsoft predicts which bugs in its software will be exploited, it's right only about 27 percent of the time.