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CYREN Ltd. (previously Commtouch Ltd.
Type Public
Industry IT Security,
Information Technology
Founded 1991
Headquarters McLean, VA, USA
Key people Lior Samuelson (CEO),
Lior Kohavi (CTO)
Products Anti-spam solutions,
Web Application Security,
Anti-virus solutions,
Content filtering,
Network security
Revenue Increase US$ 23.91 million (2012)
Operating income Decrease $ 0.78 million (2012)
Profit Decrease $ 1.49 million (2012)
Employees 198 (2012)
Subsidiaries Commtouch Inc.,
eleven GmbH,

CYREN is an Internet security technology company founded in 1991. The company is headquartered in McLean, VA, USA, with subsidiaries in Herzliya, Israel, Berlin, Germany and Reykjavík, Iceland. Commtouch is a public company and its shares are traded on NASDAQ and the Tel Aviv Stock Exchange. The company's shares are included in the TA BlueTech-50 Index.

In January 2014 Commtouch rebranded and became CYREN.[1]


Commtouch’s cloud-based (cloud computing) patented Recurrent Pattern Detection (RPD), a type of checksum-based filtering, and GlobalView technologies work together for format- and language-agnostic[disambiguation needed] protection against spam and malware.[2][3][4]

The technology automatically analyzes billions of Internet transactions per day to identify new threats.[5] Based on these patterns, Commtouch identifies new spam and malware outbreaks as they occur.[6]

Products and technologies[edit]

Commtouch key products include:

  1. CYREN WebSecurity
  2. CYREN EmailSecurity
  3. AntiSpam[7]
  4. Virus Outbreak Detection
  5. Embedded URL Filtering[8]
  6. Zombie IP address Feed [9]
  7. Outbound AntiSpam
  8. Recurrent Pattern Detection (RPD)[10]
  9. IP Reputation[11]
  10. AntiVirus[12]

Company history[edit]

Commtouch was founded in 1991 by Nahum Sharfman, Gideon Mantel and Amir Lev. Mr. Mantel served as the Chief Executive Officer and Chairman of the board, and retired in December 2010. Isabel Maxwell served as its North American President from 1997-2001, [13] during which time the company successfully debuted on Nasdaq. (List of Israeli companies quoted on the Nasdaq) When Mr. Sharfman stepped down from the executive team of the company he remained active as a board member. He died in a light aircraft crash in Greece on April 28, 2009.

Commtouch is on the List of Israeli companies quoted on the Nasdaq and on the Tel Aviv Stock Exchange.[14][15][16][17]

In 2010, Commtouch acquired the Command Antivirus division of Authentium.[18] In Summer of 2012, Commtouch acquired FRISK, makers of F-Prot Antivirus. Friðrik Skúlason, founder of FRISK joined Commtouch as the vice-president of Antivirus technologies.[19] In the Fall of 2012 Commtouch acquired the German company eleven GmbH, makers of the eXpurgate antispam solution. Robert Rothe, founder of eleven joined Commtouch as the Chief Technology Officer[20] but left the company shortly thereafter. He was replaced by Lior Kohavi [21]

As of 2014 Commtouch operates under the Name CYREN.

External links[edit]


See also[edit]