SSH Communications Security

Major Shareholding Notification • Dec 8, 2017

Disclosure 356853

SSH Communications Security Oyj - Major shareholder announcements

FLAGGING NOTIFICATION UNDER CHAPTER 9, SECTION 10 OF THE FINNISH SECURITIES MARKETS ACT

SSH Communications Security Corporation has received to following flagging notification concerning the shares in SSH Communications Security Corporation:

1. Issuer of shares

SSH Communications Security Corporation, 1035804-9

2. Shareowner obliged to give notification

Clausal Computing Oy

3. Reason for notification

Due to the share subscription of

198.200 new shares (employee stock options), conducted on July 10, 2017, the total amount of SSH Communications Security Corporation´s shares increased to 38.263.783 shares. Due to these subscriptions, Clausal Computing Oy´s ownership decreased to 9,95 percent, which is below 10 percent flagging threshold. Clausal Computing Oy has not traded shares and its share holding has remained the same.

4. Share of the ownership in the company

Clausal Computing Oy’s ownership is SSH Communications Security Corporation is 3.808.650 shares and votes.

Helsinki, 8 December 2017

SSH COMMUNICATIONS SECURITY CORPORATION

Helena Kukkonen

CFO

Further info:

Helena Kukkonen, CFO, tel. +358 40 835 3440

Distribution:

Nasdaq Helsinki Oy

Major media

www.ssh.com