iSheriff
| Type | Private |
|---|---|
| Industry | Information Security |
| Founded | 1999 |
| Headquarters | , |
Key people | Oscar G Marquez (CTO & founding member) |
| Products | E-mail filtering, Web filters, Email Archiving, Endpoint Security All products are cloud-based |
| Website | www.isheriff.com |
iSheriff (formerly Internet Sheriff) is an Internet security software vendor that specializes in cloud-based security and compliance, with specialties in E-mail filtering, Web filters and endpoint security. The company is privately held and based in Redwood City, California. iSheriff sells their products through partners and distributors.[1]
History
[edit]Founded in Brisbane, Australia in 1999 by Oscar Marquez, iSheriff products focused on content filtering, email and Web filtering software and appliances. In 2009 the company moved its products to a cloud computing service model. iSheriff services include e-mail filtering, web filtering, email archiving, e-mail encryption and security reporting. The company holds a patent for its data modeling engine based on Bayesian spam filtering principals.
In 2006, iSheriff provided Internet filtering software to the Tasmanian government's first statewide trial of anti-pornography filters for children.[2][3]
In July 2012, Total Defense, Inc., a provider of cybercrime-fighting technology, announced they had acquired iSheriff.[4] On April 21, 2014, Total Defense announced that, in conjunction with the sale of their consumer business unit to Untangle, they re-branded as iSheriff.[5]
In November 2016, Mimecast announced that it had purchased substantially all of the assets of iSheriff.[6] Mimecast was later acquired by private equity firm Permira for $5.8 billion.[7]
References
[edit]- ↑ "MSP Mentor". Archived from the original on 2014-04-23. Retrieved 2014-04-21.
- ↑ Schubert, Misha (2006-04-12). "Parents log on to trial internet pornography ban". The Age. Retrieved 2021-04-02.
- ↑ "Free porn filter trial". The Sydney Morning Herald. 2006-04-12. Retrieved 2021-04-02.
- ↑ "Total Defense buys cloud security company iSheriff". www.bizjournals.com. Retrieved 2021-04-02.
- ↑ "The Herald". Archived from the original on 2014-04-22. Retrieved 2020-01-20.
- ↑ "Mimecast says purchasing substantially all of assets of iSheriff". Reuters. 2016-11-23. Retrieved 13 December 2025.
- ↑ "Austin's Best CFOs: Eric Jenny". Austin Business Journal. 2022-07-18. Retrieved 13 December 2025.
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