Tresorit

Tresorit provides an end-to-end encrypted productivity solution for ultra-secure collaboration, including managing, storing, syncing, and transferring files.

Tresorit
Operating systemWindows, macOS, Android, iOS, Windows Phone, Linux
Available inEnglish, French, German, Hungarian
TypeCloud storage
LicenseProprietary software
Websitetresorit.com

More than 10,000 businesses worldwide, including SMBs and enterprises, use Tresorit to protect their confidential data and securely share information both within teams and with clients and partners. Tresorit’s technology combines industry-leading end-to-end encryption, granular data control features, and seamless integration into workflows.

Founded in 2011, Tresorit’s mission is to empower everyone to take back control of their digital valuables by protecting their privacy and confidential information. The company closed an €11.5M Series B financing round in 2018 and is featured on FT1000 by Financial Times 2020[1] as the fifth fastest-growing cybersecurity company in Europe.

Tresorit has offices in Zurich, Switzerland; Munich, Germany; and Budapest, Hungary, employing around 120 people.

History

Tresorit was founded in 2011 by Istvan Lam (CEO), Szilveszter Szebeni (CIO) and Gyorgy Szilagyi (CPO). In the coming years, Andrea Skaliczki joined as CFO, Istvan Hartung as CTO and Arno van Züren as CSO. The company officially launched its client-side encrypted cloud storage service after emerging from its stealth beta version in April 2014.

In August 2015, Wuala (owned by LaCie and Seagate), a pioneer of secure cloud storage, announced it was closing its service after 7 years and recommended its users to choose Tresorit as their secure cloud alternative.

By the end of 2016, Tresorit launched a beta of the software development kit (SDK) ZeroKit.[2] In January 2017, Apple's SDK project CareKit announced the option for mobile app developers using CareKit to integrate ZeroKit, enabling zero-knowledge user authentication and encryption for medical and health apps.

In 2017, Tresorit patented its shareable encryption technology in the US, and LogMeIn co-founder Marton Anka joined Tresorit as an investor and advisor and published its first transparency report.

In 2018, Tresorit received the ISO 27001 certification, further demonstrating its commitment to information security as well as raised €11.5M Series B funding.

In 2019, Tresorit reached the number of 100 employees, and Tresorit improved its governance feature set with e-mail verification and detailed user reports.

In 2020, Tresorit joined the fight against COVID-19 with free access to remote work solutions for public education and healthcare institutions[3].  As a result of its hard work to make the internet a safer place, Tresorit was named the 2020 Gartner Peer Insights Customers’ Choice for Content Collaboration Tools[4].

In 2021 so far, Tresorit introduced its new external collaboration initiative, Tresorit Content Shield[5][6][7]. As part of the TCS, Tresorit launched many new features for its enterprise users: Advanced Link Tracking, Dynamic Watermarking, and Link Activity Report. As part of the new feature releases, Tresorit also introduced Tresorit for Gmail and Tresorit for Outlook[8]. To help its customers ensure compliance within their own industry, Tresorit supports its customers to be GDPR, HIPAA, CCPA, TISAX, FINRA, and ITAR compliant. Tresorit also renewed its ISO 27001 certification to keep its security level at the same high quality.

In July 2021, Tresorit was acquired by the Swiss Post [9]to further expand its presence in its core German-speaking markets, including Germany, Austria, and Switzerland.

Technology

Tresorit offers the highest level of security by protecting each of the files with AES 256 encryption. With Tresorit’s end-to-end encryption, every file and relevant metadata on user devices are encrypted with unique, randomly generated encryption keys. These keys are never sent to Tresorit’s servers in an unencrypted format. Accessing files is only possible with a user's unique private decryption key.

Tresorit uses random keys for each file and random IVs for each version of a file. The result is that two identical files look completely different after encryption. It becomes impossible for Tresorit or anyone else to compare and match them.

Due to its zero-knowledge system[10], Tresorit does not store passwords, only the user can access his/her own password. Administrators of a business Tresorit account can reset passwords in exceptional cases but can never access those.

Hacking contest

In 2013 and 2014, Tresorit hosted a hacking contest offering $10,000 to anyone who hacked their data encryption methods to gain access to their servers.[11] After some months, the reward was increased to $25,000 and later to $50,000, challenging experts from institutions like Harvard, Stanford or MIT.[12][13][14] The contest ran for 468 days and according to the company, nobody was able to break the encryption. [15]

Awards

Tresorit receives constant recognition for its achievements in the field of cybersecurity. In 2017, Tresorit was named one of the Rising Stars at Deloitte’s Technology Fast 50 Central Europe Award. In 2019, Tresorit was named as a Global Leader in Cloud Computing at the Stratus Awards[16]. In 2020, Tresorit was named the 2020 Gartner Peer Insights Customers’ Choice for Content Collaboration Tools[17] and was featured on FT1000 by Financial Times 2020 as the fifth fastest-growing cybersecurity company in Europe.

See also

References
  1. Kelly, Maxine (2 March 2021). "FT 1000: the fifth annual list of Europe's fastest-growing companies". Financial Times. Retrieved 15 December 2021.
  2. Hinchliffe, Emma (11 January 2017). "Apple's CareKit apps get enhanced security option". Mashable. Retrieved 15 December 2021.
  3. "Switching to online education: The challenges & how Tresorit can help". Tresorit Blog. 11 May 2020. Retrieved 15 December 2021.
  4. "Tresorit Named a 2020 Gartner Peer Insights Customers' Choice". Tresorit Blog. 28 October 2020. Retrieved 15 December 2021.
  5. "Tresorit Content Shield". tresorit.com. Retrieved 15 December 2021.
  6. "Files shared via Tresorit". Tresorit. Retrieved 15 December 2021.
  7. "Only 30% of enterprises use cloud services with E2E encryption for external file sharing". Help Net Security. 13 September 2021. Retrieved 15 December 2021.
  8. "Secure file sharing & content collaboration with Encryption". tresorit.com. Retrieved 15 December 2021.
  9. "Swiss Post acquires e2e encrypted cloud services provider, Tresorit". TechCrunch. Retrieved 15 December 2021.
  10. "What is Zero-Knowledge Encryption?". Tresorit Blog. 20 May 2016. Retrieved 15 December 2021.
  11. "Secure cloud storage outfit Tresorit posts $10K hacker bounty — Tech News and Analysis". Gigaom.com. 11 April 2013. Retrieved 18 June 2013.
  12. Hungarian ‘security freaks’: Hack our startup and we’ll give you $25K
  13. Hackers, Here's a Way To Make An Easy $25k
  14. Secure cloud firm Tresorit boosts hacker bounty to $25,000
  15. "Farewell, Wuala! Pioneering secure storage shuts down, recommends Tresorit". 17 August 2015.
  16. "Tresorit named a Global Leader in Cloud Computing". Tresorit Blog. 24 October 2019. Retrieved 15 December 2021.
  17. "Tresorit Named a 2020 Gartner Peer Insights Customers' Choice". Tresorit Blog. 28 October 2020. Retrieved 15 December 2021.
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