Complex sentence: Risks that affect revenues can be unanticipated competition, privacy, intellectual property right problems, and unit sales that are less than forecast; unexpected development costs also create risk that can be in the form of more rework than anticipated, security holes, and privacy invasions.
Split into simpler sentences: Risks that affect revenues can be: unanticipated competition, privacy, intellectual property right problems, and unit sales that are less than forecast. Unexpected development costs also create risk that can be in the form of more rework than anticipated, security holes, and privacy invasions.