Major clients included Microsoft, Google, Check Point, Dell, T-Mobile, and Intel.

[2] At its peak, Cyren employed approximately 220 with headquarters in McLean, Virginia (US), and offices in Herzliya (Israel), Berlin (Germany), Bracknell (UK) and Reykjavík (Iceland).

[5] In the same year, the firm provided primary support to the Icelandic police during their investigation of the largest cyberattack to hit the country.

[9] Wired magazine observed that the early company culture at Commtouch encouraged "being a fighter" as their Israeli employees had completed several years of military service.

The CCS SaaS security platform is designed for enterprises and sold either directly or through channel partners.

Cyren TIS offers cloud-based cyber threat detection application program interfaces (APIs), and software development kits (SDKs) to technology and security vendors, including Google and Microsoft.

In February 2019, Cyren announced the intent of Lior Samuelson, the chief executive officer and chairman of the board, to step down as CEO.