Sunday, August 10, 1997, 1:00 pm: The mystery transit employee (Red Balaclava) who appeared at the original Hackers On Planet Earth conference in 1994 returns to talk about the easily hackable but ingeniously self-correcting payment method of New York City's subways and buses. We will also discuss the subtle - and possibly increasing - dangers of the Transit Authority's ability to trace YOUR travels via Metrocard.