STONESOFT OYJ : MCAFEE HAS ANNOUNCED THAT IT EXTENDS THE ACCEPTANCE PERIOD UNDER ITS TENDER OFFER FOR ALL THE SHARES AND OPTION RIGHTS IN STONESOFT UNTIL 19 JUNE 2013

STONESOFT CORPORATION STOCK EXCHANGE RELEASE 5.6.2013 at 9:35 A.M.

MCAFEE HAS ANNOUNCED THAT IT EXTENDS THE ACCEPTANCE PERIOD UNDER ITS TENDER OFFER FOR ALL THE SHARES AND OPTION RIGHTS IN STONESOFT UNTIL 19 JUNE 2013

Stonesoft Oyj (hereinafter "Stonesoft") and Intel Corporation have on 6 May 2013 announced that Stonesoft and McAfee, Inc. (hereinafter "McAfee") have on 5 May 2013 entered into a Combination Agreement under which they agree to combine the operations of Stonesoft and McAfee. In order to effect the combination, McAfee Suomi Funding LLC (hereinafter the "Offeror"), an affiliate of McAfee and a wholly-owned indirect subsidiary of Intel Corporation, launched a voluntary public tender offer to purchase all of the issued and outstanding shares in Stonesoft and option rights that are not owned by Stonesoft or any of its subsidiaries (hereinafter the "Tender Offer").The offer period under the Tender Offer commenced on 21 May 2013 and was initially scheduled to expire on 11 June 2013 (hereinafter the "Offer Period").

Pursuant to the press release of the Offeror published today, the Offeror has today decided to extend the Offer Period in accordance with the terms and conditions of the Tender Offer, to expire on 19 June 2013 at 4:00 p.m. Finnish time to allow sufficient time to complete the approval process under the Act on Monitoring Foreign Acquisitions with the Finnish Ministry of Employment and the Economy before the expiry of the Offer Period. The Offeror believes an approval will be obtained during the extended Offer Period. Except for the extension of the Offer Period, the terms and conditions of the Tender Offer remain unchanged.

The completion of the Tender Offer is subject to the satisfaction or waiver by the Offeror of certain conditions to completion, as stated in the terms and conditions of the Tender Offer published on 16 May 2013 and included in the tender offer document relating to the Tender Offer.

The press release of the Offeror referred to above, is attached as Appendix 1 in its entirety to this stock exchange release.

STONESOFT CORPORATION
Ilkka Hiidenheimo
CEO

APPENDIX 1: Press release of McAfee Suomi Funding LLC 5 June 2013

Additional information:
Ilkka Hiidenheimo, CEO, Stonesoft Corporation
tel. +358 (0)9 476 711
e-mail: ilkka.hiidenheimo@stonesoft.com:
mailto:ilkka.hiidenheimo@stonesoft.com

Distribution:
NASDAQ OMX Helsinki Oy
www.stonesoft.com:
http://www.stonesoft.com/

APPENDIX 1

MCAFEE SUOMI FUNDING LLC PRESS RELEASE 5 June 2013 at 9:30 am

NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION, DIRECTLY OR INDIRECTLY, IN OR INTO THE UNITED STATES, CANADA, JAPAN, AUSTRALIA, SOUTH AFRICA, HONG KONG OR IN ANY OTHER JURISDICTION IN WHICH THE TENDER OFFER WOULD BE PROHIBITED BY APPLICABLE LAW.

MCAFEE EXTENDS THE ACCEPTANCE PERIOD UNDER ITS TENDER OFFER FOR ALL THE SHARES AND OPTION RIGHTS IN STONESOFT UNTIL 19 JUNE 2013

McAfee, Inc. ("McAfee") and Stonesoft Oyj ("Stonesoft") announced on 6 May 2013 that they entered into a Combination Agreement under which they agree to combine the operations of McAfee and Stonesoft. In order to effect the combination, McAfee Suomi Funding LLC (the "Offeror"), an affiliate of McAfee and a wholly-owned indirect subsidiary of Intel Corporation ("Intel"), launched a voluntary public tender offer to purchase all of the issued and outstanding shares and option rights in Stonesoft that are not owned by Stonesoft or any of its subsidiaries (the "Tender Offer"). The offer period under the Tender Offer commenced on 21 May 2013 and was initially scheduled to expire on 11 June 2013 (the "Offer Period").

Pursuant to the terms and conditions of the Tender Offer, the Offeror has today decided to extend the Offer Period to expire on 19 June 2013 at 4:00 p.m. Finnish time to allow sufficient time to complete the approval process under the Act on Monitoring Foreign Acquisitions with the Finnish Ministry of Employment and the Economy before the expiry of the Offer Period. The Offeror expects an approval will be obtained during the extended Offer Period. Except for the extension of the Offer Period, the terms and conditions of the Tender Offer remain unchanged.

The completion of the Tender Offer is subject to the satisfaction or waiver by the Offeror of certain conditions to completion, as stated in the terms and conditions of the Tender Offer published on 16 May 2013 and included in the tender offer document relating to the Tender Offer.

The price offered for each share validly tendered in the Tender Offer is EUR 4.50 in cash, representing a premium of approximately 128 percent compared to the closing price of the Stonesoft shares on NASDAQ OMX Helsinki on 3 May 2013, the last trading day before the announcement of the Tender Offer.

The price offered for each option right granted under Stonesoft's option plans 2008 and 2012 and validly tendered in the Tender Offer is EUR 4.20 in cash for each 2008A option right, EUR 4.20 in cash for each 2008B option right, EUR 4.20 in cash for each 2008C option right, EUR 4.20 in cash for each 2008D option right, EUR 3.08 in cash for each 2012A option right, EUR 2.19 in cash for each 2012B option right and EUR 2.19 in cash for each 2012C option right.

The tender offer document is available in the Finnish language at the branch offices of the cooperative banks belonging to the OP-Pohjola Group and Helsinki OP Bank Plc and at NASDAQ OMX Helsinki, Fabianinkatu 14, FI-00130 Helsinki, Finland, and on the internet at www.op.fi/merkinta and www.stonesoft.com, and in the English language on the internet at www.op.fi/merkinta and www.stonesoft.com.

Any Stonesoft shareholders or holders of option rights who have not received information and instructions on the acceptance of the Tender Offer from their account operator or asset manager can contact any branch office of the cooperative banks belonging to the OP-Pohjola Group or Helsinki OP Bank Plc to obtain all necessary information and give their acceptance of the Tender Offer.

5 June 2013

Intel Corporation         McAfee Suomi Funding LLC

For further information, please contact:

Tracy Ross, Director, Public Relations, McAfee, Inc., tracy_ross@mcafee.com, tel. +1 408 346 3745

Trey Campbell, Investor Relations, Intel Corporation, trey.s.campbell@intel.com, tel. +1 503 696 0431

INFORMATION REGARDING MCAFEE, INC.

McAfee, a wholly owned subsidiary of Intel Corporation (NASDAQ:INTC), empowers businesses, the public sector, and home users to safely experience the benefits of the Internet. The company delivers proactive and proven security solutions and services for systems, networks, and mobile devices around the world. With its Security Connected strategy, innovative approach to hardware-enhanced security, and unique Global Threat Intelligence network, McAfee is relentlessly focused on keeping its customers safe. http://www.mcafee.com.

INFORMATION REGARDING INTEL CORPORATION

Intel Corporation (NASDAQ: INTC) is a world leader in computing innovation. The company designs and builds the essential technologies that serve as the foundation for the world's computing devices. Additional information about Intel Corporation is available at www.intel.com/pressroom and blogs.intel.com.

INFORMATION REGARDING STONESOFT OYJ

Stonesoft Corporation (NASDAQ OMX: SFT1V) delivers software based, dynamic, customer-driven cyber security solutions that secure information flow and simplify security management. Stonesoft serves private and public sector organizations that require high availability, ease-of-management, compliance, dynamic security, protection of critical digital assets, and business continuity against today's rapidly evolving cyber threats. Stonesoft leads research into advanced cyber threats and the advanced evasion techniques (AETs) used in stealth, targeted cyber attacks.

The company's product portfolio is based on one unified Security Engine software platform that is the power behind Stonesoft's next generation firewalls, evasion prevention systems, and SSL VPN solutions. The Security Engine back-end is augmented by the Stonesoft Management Center front-end, which enables efficient management of entire networks and brings excellent situational awareness and operational cost savings.

Stonesoft's customer base covers more than 6,500 mid and large-sized organizations across various industries and geographical markets. Stonesoft has the highest customer retention rate in the industry due to low TCO, a flexible licensing model, and overall customer service excellence. Founded in 1990, the company's track record is well recognized and visionary by certifiers, industry analysts and demanding customers. Stonesoft is headquartered in Helsinki, Finland. For more information visit www.stonesoft.com.

THIS RELEASE MAY NOT BE RELEASED OR OTHERWISE DISTRIBUTED, IN WHOLE OR IN PART, IN OR INTO THE UNITED STATES, CANADA, JAPAN, AUSTRALIA, SOUTH AFRICA OR HONG KONG OR IN ANY OTHER JURISDICTION IN WHICH THE TENDER OFFER WOULD BE PROHIBITED BY APPLICABLE LAW.

THIS RELEASE IS NOT A TENDER OFFER DOCUMENT AND AS SUCH DOES NOT CONSTITUTE AN OFFER OR INVITATION TO MAKE A SALES OFFER. INVESTORS SHALL ACCEPT THE TENDER OFFER FOR THE SHARES AND OPTION RIGHTS ONLY ON THE BASIS OF THE INFORMATION PROVIDED IN A TENDER OFFER DOCUMENT. OFFERS WILL NOT BE MADE DIRECTLY OR INDIRECTLY IN ANY JURISDICTION WHERE EITHER AN OFFER OR PARTICIPATION THEREIN IS PROHIBITED BY APPLICABLE LAW OR WHERE ANY TENDER OFFER DOCUMENT OR REGISTRATION OR OTHER REQUIREMENTS WOULD APPLY IN ADDITION TO THOSE UNDERTAKEN IN FINLAND.

THE TENDER OFFER IS NOT BEING MADE DIRECTLY OR INDIRECTLY IN ANY JURISDICTION WHERE PROHIBITED BY APPLICABLE LAW AND THE TENDER OFFER DOCUMENT AND RELATED ACCEPTANCE FORMS MAY NOT AND WILL NOT BE DISTRIBUTED, FORWARDED OR TRANSMITTED INTO OR FROM ANY JURISDICTION WHERE PROHIBITED BY APPLICABLE LAW. IN PARTICULAR, THE TENDER OFFER IS NOT BEING MADE, DIRECTLY OR INDIRECTLY, IN OR INTO, OR BY USE OF THE POSTAL SERVICE OF, OR BY ANY MEANS OR INSTRUMENTALITY (INCLUDING, WITHOUT LIMITATION, FACSIMILE TRANSMISSION, TELEX, TELEPHONE OR THE INTERNET) OF INTERSTATE OR FOREIGN COMMERCE OF, OR ANY FACILITIES OF A NATIONAL SECURITIES EXCHANGE OF, THE UNITED STATES, CANADA, JAPAN, AUSTRALIA, SOUTH AFRICA OR HONG KONG. THE TENDER OFFER CANNOT BE ACCEPTED BY ANY SUCH USE, MEANS OR INSTRUMENTALITY OR FROM WITHIN THE UNITED STATES, CANADA, JAPAN, AUSTRALIA, SOUTH AFRICA OR HONG KONG.

GOLDMAN SACHS INTERNATIONAL, WHICH IS AUTHORISED BY THE PRUDENTIAL REGULATION AUTHORITY AND REGULATED BY THE FINANCIAL CONDUCT AUTHORITY AND THE PRUDENTIAL REGULATION AUTHORITY IN THE UNITED KINGDOM, IS ACTING FOR MCAFEE AND THE OFFEROR AND NO ONE ELSE IN CONNECTION WITH THE TENDER OFFER AND WILL NOT BE RESPONSIBLE TO ANYONE OTHER THAN MCAFEE AND THE OFFEROR FOR PROVIDING THE PROTECTIONS AFFORDED TO CLIENTS OF GOLDMAN SACHS INTERNATIONAL, OR FOR GIVING ADVICE IN CONNECTION WITH THE TENDER OFFER OR ANY MATTER REFERRED TO HEREIN.