SSH COMMUNICATIONS SECURITY CORP STOCK EXCHANGE ANNOUNCEMENT, DECEMBER 7, 2007 According to the I/1999 option program, 262 shares were subscribed for using class E option certificates, 262 shares using class F option certificates, 264 shares using class G option certificates and 262 shares using class H option certificates. The subscription period for shares with I/1999 E option certificates started May 1, 2002, with I/1999 F option certificates November 1, 2002, with I/1999 G option certificates May 1, 2003 and with I/1999 H option certificates November 1, 2003. The issue of the I/1999 Stock Option Program was approved by Annual General Meeting of August 5, 1999. According to the I/2003 option program, 2 165 shares were subscribed for using class A option certificates, 8 672 shares using class B option certificates and 9 330 shares using class C option certificates. The subscription period for shares with I/2003 A option certificates started May 1, 2004, with I/2003 B option certificates May 1, 2005 and with I/2003 C option certificates started May 1, 2006. The issue of the I/2003 Stock Option Program was approved by the Annual General Meeting of April 29, 2003. According to the II/2003 option program, 2 000 shares were subscribed for using A option certificates, 2 000 shares using class B option certificates, 2 000 shares were subscribed for using C option certificates and 2 000 shares using D option certificates. The subscription period for shares with II/2003 A option certificates started May 1, 2004, with II/2003 B option certificates May 1, 2005, with II/2003 C option certificates May 1, 2006 and with II/2003 D option certificates May 1, 2007. The issue of the II/2003 Stock Option Program was approved by the Annual General Meeting of April 29, 2003. The corresponding increase in the share capital, in total EUR 876,51 was registered in the Finnish Trade Register on December 7, 2007. As a result of the increase, the share capital of the company is EUR 856.083,36 and the total number of shares 28.536.112. The holders of the new shares are entitled to all shareholders' rights from the registration date December 7, 2007. The new shares will be listed on the nordic list of OMX Nordic Exchange Helsinki Oy together with the other shares as of December 10, 2007. SSH COMMUNICATIONS SECURITY CORP Pekka Rauhala General Counsel Further information: Pekka Rauhala, General Counsel tel: +358 20 500 7522 Distribution: OMX Nordic Exchange Helsinki Oy Major Media www.ssh.com