STONESOFT CORPORATION: NOTIFICATION PURSUANT TO CHAPTER 9, SECTION 10 OF THE FINNISH SECURITIES MARKET ACT

Stonesoft Corporation Stock Exchange Release 27 June 2013 at 7.25 p.m.

STONESOFT CORPORATION: NOTIFICATION PURSUANT TO CHAPTER 9, SECTION 10 OF THE
FINNISH SECURITIES MARKET ACT

Stonesoft Corporation has received the following notification on 27 June 2013:

NOTIFICATION OF A CHANGE IN SHAREHOLDING PURSUANT TO CHAPTER 9, SECTION 5 OF THE
FINNISH SECURITIES MARKET ACT

1. Issuer of the shares

Stonesoft Corporation, business identity code 0837548-0.

2. Name of the shareholder subject to notification obligation

Shareholder Mr. Ilkka Hiidenheimo.

3. Reason for the notification

Mr. Ilkka Hiidenheimo's holdings in Stonesoft Corporation have decreased below
5% of the voting rights and total number of shares of Stonesoft Corporation. The
completion of trades relating to McAfee Suomi Funding LLC's public tender offer
for all the shares and option rights in Stonesoft Corporation have been executed
today 27 June 2013. The settlement of the completion of trades is expected to
take place on 2 July 2013.

On 6 May 2013 Mr. Ilkka Hiidenheimo issued a notification where he confirmed to
have irrevocably and unconditionally undertaken to accept and to tender his
shares in the offer.

The total number of shares registered at the Trade Register and the total number
of voting rights related to them is 64,090,482 shares and voting rights.

Helsinki, 27 June 2013

Stonesoft Corporation
Ilkka Hiidenheimo
CEO

For further information, please contact:
Mikael Nyberg, CFO, Stonesoft Corporation
Tel. +358 9 476 711

Distribution:
NASDAQ OMX Helsinki Ltd
www.stonesoft.com



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