I apologize if this subject has been covered before. When I checked my HHonors account balance several weeks ago, I was shocked to find out that more than 100K HHonors points have mysteriously disappeared from my account. I was told that Hilton is aware of the problem, which at this point involves hundreds of HHonors members. They suspect that a virus found its way into the computer system. They are still investigating the cause and possible corrective actions.