Story updated with stock repurchase information.

SANTA CLARA, Calif. (

TheStreet

) --

McAfee

(MFE)

comfortably beat analysts' sales estimates in its fourth quarter results

and gave bullish guidance for the current quarter.

The security software maker also announced the retirement of CFO/COO Rocky Pimentel, who will be leaving the company later this year. McAfee said it has already started searching for a new CFO and expects to make the hire before the end of this year. Pimentel will remain in his role to help ease the transition.

McAfee reported revenue of $525.7 million after market close, up from $424 million in the same period last year and well above analysts' forecast of $514.81 million.

McAfee's CEO, Dave DeWalt

Excluding items, McAfee earned 64 cents a share, up from 53 cents a year in the prior year's quarter. Analysts surveyed by Thomson Reuters had predicted earnings of 64 cents a share.

For the current quarter, McAfee expects revenue between $500 million and $520 million, at the high end of Wall Street's forecast of $507.3 million. Excluding items, the company forecast profit between 60 cents a share and 64 cents a share, compared to analysts' estimate of 63 cents a share.

Repeatedly highlighted as

an attractive option for investors, McAfee

was one of

TheStreet

's

top tech picks for 2009

.

Seen as one of the

best-positioned

TST Recommends

cybersecurity

stocks, McAfee has been

clawing away

at rival

Symantec's

(SYMC) - Get Report

market share.

"We increased market share in all four quarters

of fiscal 2009," said CEO Dave DeWalt during a conference call after market close on Thursday. "Revenue reached $1.9 billion, an increase of 20% over 2008."

The company also announced a stock repurchase program of up to $500 million through December 2011.

McAfee's shares, however, dipped 24 cents, or 0.63%, to $37.65 in extended trading.

Rival Symantec recently swung to a profit in its third-quarter results

, although

investors were underwhelmed by the firm's weak fourth-quarter guidance

.

-- Reported by James Rogers in New York

Follow James Rogers on

Twitter

and become a fan of

TheStreet.com

on

Facebook.