Two technology companies, McAfee Inc. and CNET Networks Inc., announced the departure of their top executives, as the fallout from stock-options backdating probes continued to spread, the Wall Street Journal reports

McAfee, a maker of security and antivirus software, said George Samenuk has resigned as chairman and chief executive in the wake of findings of a stock-options probe by a special board committee. The board also terminated the employment of Kevin Weiss as president.

McAfee, which disclosed in June that regulators had opened a formal probe of its options practices, named Dale Fuller as interim CEO and president. Mr. Fuller joined the board in January 2006 and served more than six years as chief executive and president of Borland Software Corp.

Separately, online publisher CNET Networks Inc. announced the resignation of its chairman and CEO, Shelby Bonnie, and said its general counsel and head of human resources have also resigned, as a result of an internal options probe.

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