(Reuters) - Intel Corp INTC.O on Thursday gave a bullish forecast and blew past Wall Street expectations for the fourth quarter on the strength of data center sales, the business it sees as key to its transformation from a PC supplier.

Intel stock rose 3.8 percent to $47.06, boosted by a 10 percent dividend hike and the forecast, which signaled that Intel is succeeding in containing fallout from recently disclosed security flaws that could allow hackers to steal data from computers.

Those flaws, dubbed Spectre and Meltdown, created global concern among technology users, and Intel acknowledged on Thursday, for the first time, that the fallout could hurt future results. But Intel executives consistently indicated that they did not expect that to happen.

Software fixes for the problems would be succeeded by solutions designed into Intel chips themselves later this year, Chief Executive Brian Krzanich said on a conference call.

In an interview ahead of Intel’s earnings call with investors, Chief Financial Officer Bob Swan said the company sees no “meaningful impact” on corporate earnings from the vulnerabilities.

“They had all these bullets flying at them with these chip flaws, but when I look at these numbers, it’s a blowout across all metrics,” said Daniel Morgan, a fund manager with Synovus Trust, which holds Intel shares. “That makes it a bulletproof quarter.”

Revenue from the company’s higher-margin data center business rose about 20 percent to $5.58 billion, beating the average analyst estimate of $5.13 billion, according to Thomson Reuters I/B/E/S. Investors had targeted 10 percent growth, said Kevin Cassidy, an analyst at Stifel.

”Data center group is one of the key metrics we are watching. It’s certainly a positive to see that turn up,” said Peter Karazeris, an analyst Intel investor Thrivent Financial.

Revenue from Intel’s PC group hit $9 billion for the quarter, a 2 percent decline from the year before, but ticked up 3 percent for the year to $34 billion.

Intel also saw strong growth in two small non-PC businesses that it hopes to expand in the future. Its so-called internet of things business, which focuses on connecting street lights and industrial machines to the web, expanded 21 percent to $879 million for the quarter. Programmable chips, which customers like Microsoft Corp MSFT.O are experimenting with using in data centers, grew 35 percent to $568 million for the quarter.

Intel predicted $65 billion in revenue for 2018, well above expectations of a $63.7 billion forecast. The company also said its tax rate would be 14 percent for 2018 after changes in U.S. tax law that it executives said created a “level playing field” for U.S. manufacturers.

Intel warned in its earnings release that fallout from the discovery of Spectre and Meltdown could hurt future results, as well as customer relationships and the company’s reputation.

Analysts have said the biggest risk to Intel might come from customers using the disruption caused by fixing the bug as an excuse to press for lower prices.

The company posted a loss of $687 million, or 15 cents per share, in the fourth quarter ended Dec. 30, including a $5.4 billion charge related to recent changes in U.S. tax law.

Excluding items, the chipmaker earned $1.08 per share for the fourth quarter, up 39 percent from 79 cents a year earlier. Total revenue for the quarter rose 4.1 percent to $17.1 billion, up from $16.4 billion a year earlier.

Those figures beat analysts’ expectations of a profit of 86 cents per share on a revenue of $16.34 billion, according to Thomson Reuters I/B/E/S.