Table: Beware

Ex-employees are increasingly seeking revenge on their former employers. Here's how companies can fight back:

-- Terminate employees' computer access just before they are handed pink slips

-- Inform workers that divulging company secrets and intruding via computer are serious crimes

-- Treat laid-off workers with respect: Most cases of corporate sabotage and hacking are inside jobs

-- Require remaining employees to change passwords

-- Sweep the computer system to detect intruders

    Before it's here, it's on the Bloomberg Terminal.