Kiteworks
Kiteworks, formerly known as Accellion, Inc., is an American technology company that secures sensitive content communications over channels such as email, file share, file transfer, managed file transfer, web forms, and application programming interfaces. It was founded in 1999 in Singapore and is now based in San Mateo, California. The Kiteworks Private Data Network consolidates file and email data communications onto a single platform, enabling organizations to reduce data privacy exposure risk and demonstrate conformance with a variety of data privacy regulations. In 2022, Kiteworks stated that its products were used by over 3,800 organizations worldwide.
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| Company type | Private |
|---|---|
| Industry | Security software |
| Founded | 1999 in Singapore |
| Headquarters | San Mateo, California, United States |
Key people | |
Number of employees | 400+[1] |
| Website | kiteworks.com |
Kiteworks, formerly known as Accellion, Inc., is an American technology company that secures sensitive content communications over channels such as email, file share, file transfer, managed file transfer, web forms, and application programming interfaces. It was founded in 1999 in Singapore and is now based in San Mateo, California.
The Kiteworks Private Data Network consolidates file and email data communications onto a single platform, enabling organizations to reduce data privacy exposure risk and demonstrate conformance with a variety of data privacy regulations.[2]
In 2022, Kiteworks stated that its products were used by over 3,800 organizations worldwide.[3]
History
[edit]The company was founded as Accellion in Singapore in 1999 and was originally focused on distributed file storage.[4] The company moved to Palo Alto, California and shifted its focus on secure file transmission.[5] Accellion reached a total funding of about $35 million in 2011, and it was valued at $500 million in 2014.[4] The company's chief executive officer, Yorgen Edholm, credited aversion to "National Security Agency—style snooping" as a factor in their success.[6]
In January 2012, Accellion raised $12.2 million in funding from Riverwood Capital to continue their expansion.[7]
In 2016, Accellion started to focus on security and compliance and released features that included data security, governance, and compliance. They also began integrations with major cybersecurity independent software vendors (ISVs).[8]
In April 2020, the company received $120 million investment from Bregal Sagemount.[9]
In late 2020, a zero-day exploit in Accellion’s legacy File Transfer Appliance (FTA) product led to data breaches of dozens of government and private organizations. The vulnerabilities were confirmed only in the FTA and not in the Kiteworks platform, which has a separate codebase.[10] Accellion later announced it would stop supporting its legacy FTA product starting April 30, 2021.[11]
In October 2021, Accellion was rebranded as Kiteworks.[12]
In January 2022, Kiteworks acquired totemo, an email encryption gateway provider based in Zurich, Switzerland.[13] It is integrated into the Kiteworks Private Data Networks and Kiteworks Email Protection Gateway.[14]
In October 2023, Kiteworks completed a SOC 2 Type II audit examination and received ISO/IEC 27001:2013, 27017:2015, and 27018:2019 certifications for its platform. Unlike a Type I assessment, which reviews control design at a specific point in time, the SOC 2 Type II audit process involves an independent CPA firm evaluating the operational effectiveness of controls over a period of 3 to 12 months, typically including scoping, fieldwork, and evidence collection phases.
In November 2023, it was announced that Kiteworks had acquired German ownCloud and DRACOON which it intends to use as stepping stones into the European market,[15][16] and Maytech, based in Tunbridge Wells, to increase its UK market presence and secure data transfer capabilities.[17]
In May 2024, Kiteworks became an early signee of Cybersecurity and Infrastructure Security Agency's (CISA) Secure by Design Pledge.[18][19]
In August 2024, Kiteworks raised US$456 million from Insight Partners and Sixth Street, valuing it at over US$1 billion.[20][21][22]
In September 2024, Kiteworks acquired 123FormBuilder, a Romania-based company specializing in web-based data collection and form-driven content workflows.[23]
As of 2024, Kiteworks is used by 100 million users across over 3,800 organizations.[3][24]
In March 2025, Kiteworks received Federal Information Processing Standard (FIPS) 140-3 validation for its cryptographic module, building upon its previous FIPS 140-2 certification.[25] Additionally, its Secure Gov Cloud obtained FedRAMP High Ready status.[26]
In June 2025, Kiteworks acquired Zivver [nl], a Dutch company offering secure online communication. Following the acquisition, Dutch investigative journalism outlet Follow the Money raised concerns that sensitive government and corporate data could be exposed under U.S. jurisdiction. Experts noted that several members of Kiteworks’ leadership are former personnel of Israel’s Unit 8200, an elite military intelligence unit, which could present potential security vulnerabilities.[27][28]
Software
[edit]Accellion was working on file transfer systems by late 2002.[29] The company released a file transfer appliance in 2005, a physical machine aiming to reduce server load when sending large files.[30]
In March 2011, the company released an online file collaboration product, emphasizing security.[31][29][32]
In 2012, the company launched a service allowing file sharing between mobile devices.[33] It included a synchronization feature called kitedrive.[34][35] Early demand for the company's file transfer applications came from organizations that needed to transfer large files, including healthcare companies[36] and universities.[37][38]
In January 2014, Accellion launched Kiteworks, a file sharing product allowing users to edit files and projects remotely, with interoperability with services like Google Drive and Dropbox.[4][39][40] That December, the company released a set of programming interfaces extending secure file access to mobile devices.[41]
In 2015, PCMag reviewer, Fahmida Y. Rashid, praised Kiteworks for its interface, support for mobile devices, and privacy tools.[42]
In June 2017, Kiteworks received FedRAMP Authorization for Moderate Level Impact of Controlled Unclassified Information (CUI). It has achieved FedRAMP certification every year since.[43]
In November 2018, Kiteworks released the CISO Dashboard.[44]
In March 2022, Kiteworks was recognized by the Information Security Registered Assessors Program (IRAP) after being evaluated for up to the Protected data classification level.[45]
In August 2022, Kiteworks introduced the Kiteworks Private Data Network, a zero-trust protection and compliance platform for unstructured data communications.[46]
In April 2023, Kiteworks announced that it had achieved Cyber Essentials and Cyber Essentials Plus accreditation, the highest standard for IT security in the United Kingdom.[47] Also, in the same month, it announced that the Kiteworks Private Data Network supports the National Institute of Standards and Technology Cybersecurity Framework (NIST CSF), which allows users to better manage content-based risks.[48]
In February 2024, Kiteworks introduced a feature called SafeEDIT, which is a digital rights management (DRM) technology that enables users to edit various file types natively and share files with third parties using video streaming.[49]
In October 2024, Kiteworks released its AI Data Gateway which allows enterprise employees to use AI technologies while protecting sensitive data, such as personally identifiable information (PII) and intellectual property (IP).[50]
In May 2025, Angelina Apolinar, of CyberDefense Magazine, praised Kiteworks for enabling secure data exchange and external collaboration through a hardened virtual appliance architecture and digital rights management (DRM) possession-less editing capabilities that enables collaboration without sharing the original source data.[51]
2020–21 security breaches
[edit]In mid-December 2020, the company's File Transfer Appliance product—now a 20-year-old legacy system—was subject to a zero-day exploit,[52] which was patched on December 23.[53] Three additional vulnerabilities were discovered and patched over the next month.[54] The first vulnerability was a SQL injection, allowing an attacker to use a web shell to run arbitrary commands and extract data.[53] The four vulnerabilities were assigned Common Vulnerabilities and Exposures (CVE) codes 2021-27101 through 2021-27104 on February 16, 2021.[55]
Out of approximately 300 total FTA clients, up to 25 appeared to have suffered significant data theft[56][57][58] including Kroger,[59] Shell Oil Company,[60][61] the University of California system,[62] the Australian Securities and Investments Commission,[63] the Reserve Bank of New Zealand,[64] and Singtel.[65] Data stolen included Social Security numbers and other identification numbers, images of passports, financial information, driver's license data,[66] and emails.[65][67] According to computer security firm FireEye, the attackers comprised two hacking groups: one with ties to "Clop", a ransomware group, and one connected to financial crime group "FIN11".[68] Many victims received extortion emails containing a .onion link to a website containing data dumps of multiple organizations.[68] Prior to the attacks, Accellion had maintained that the FTA was a legacy product nearing the end of its life, with support ending on April 30, 2021, asking customers to move to their Kiteworks system.[10][59][69][70]
In January 2022, Accellion proposed that it would pay an $8.1m settlement in relation to these breaches. The proposed settlement will settle all legal actions against Accellion only. These do not take into account legal actions against clients impacted by the data breach.[71]
References
[edit]- ^ "Kiteworks Company Overview". Kiteworks. May 20, 2024. Retrieved May 22, 2024.
- ^ "Zero-Trust Data Protection: Kiteworks Private Data Network".
- ^ a b "About Kiteworks: Overview, Culture & Values".
- ^ a b c Deborah Gage (January 27, 2014). "Accellion Targets Box, Dropbox on Secure File Sharing". The Wall Street Journal. Retrieved January 30, 2014.
- ^ Hoffman, Thomas (March 14, 2005). "Ogilvy Harnesses the Web for its File Transfer System".
{{cite news}}: CS1 maint: deprecated archival service (link) - ^ Ramakrishnan, Sruthi (February 5, 2014). "File-sharing company Accellion aims to go public in 2015". Reuters. Retrieved April 2, 2021.
- ^ Accellion raised $12.2 million for expansion bizjournals.com January 4, 2012
- ^ "Accellion and FireEye Collaborate to Prevent Cyber Attacks From Crippling Critical Business Operations". finance.yahoo.com.
- ^ Accellion content firewall funding valuation bizjournals.com April 7, 2020
- ^ a b Newman, Lily Hay (March 8, 2021). "The Accellion Breach Keeps Getting Worse—and More Expensive". Wired. Retrieved April 2, 2021.
- ^ "Accellion to retire product at the heart of recent hacks". ZDNET.
- ^ "Accellion's Brand Name is Now Kiteworks". October 12, 2021.
- ^ Bei, Jerome (January 7, 2022). "Kiteworks Acquisition of Leading Email Encryption Gateway Company totemo Bolsters Kiteworks Content Communications Protection, Compliance, and Governance".
- ^ "Email Protection Gateway".
- ^ "ownCloud becomes part of Kiteworks". owncloud.com. November 21, 2023. Retrieved December 1, 2023.
- ^ "Kiteworks Makes Bold Moves Joining Forces With Two German Leaders in Its Space". kiteworks.com. November 21, 2023. Retrieved December 1, 2023.
- ^ "Kiteworks acquires Maytech, bolstering UK market presence and secure data transfer capabilities". Fintech Global. November 24, 2023. Retrieved December 3, 2023.
- ^ "Secure by Design Pledge | CISA". www.cisa.gov.
- ^ "Kiteworks Signs CISA's Secure by Design Pledge as an Early Signee, Reaffirms Security Commitments and Transparency".
- ^ Lunden, Ingrid (August 14, 2024). "Kiteworks captures $456M at a $1B+ valuation to help secure sensitive data". TechCrunch. Retrieved August 18, 2024.
- ^ Armental, Maria (August 14, 2024). "Insight Partners and Sixth Street Invest $456 Million in Kiteworks". The Wall Street Journal. Retrieved August 18, 2024.
- ^ "Kiteworks Private Content Network ("PCN") Vision Validated by $456M Growth Equity Investment From Insight Partners and Sixth Street Growth". Kiteworks | Your Private Content Network. Retrieved August 18, 2024.
- ^ "Kiteworks Bolsters Its Secure Data Collection Capabilities With 123FormBuilder Acquisition".
- ^ "Kiteworks and Climb Channel Solutions Strengthen Partnership to Boost Sensitive Content Communications in the UK". CMSWire.com.
- ^ "Kiteworks Achieves FIPS 140-3 Validation, Expanding Comprehensive Compliance Portfolio".
- ^ "Kiteworks Achieves FedRAMP High Ready Status for Secure Gov Cloud, Expanding Federal Security Capabilities".
- ^ Eikelenboom, Siem; Brommersma, Sebastiaan (September 13, 2025). "'Strategische blunder': vertrouwelijke data van Nederlanders in handen van Amerikanen". Follow the Money - Platform voor onderzoeksjournalistiek (in Dutch). Retrieved September 14, 2025.
- ^ "The Israeli team that led cyber company Kiteworks to a $1B valuation and $456M funding round". ctech. August 14, 2024. Retrieved September 14, 2025.
- ^ a b "Ogilvy Harnesses the Web for Its File Transfer System". Computer World. March 14, 2005.
{{cite news}}: CS1 maint: deprecated archival service (link) - ^ Solheim, Shelley (September 26, 2005). "Device Keeps Large Files Moving". eWEEK. Retrieved April 2, 2021.
- ^ Hulme, George V. (March 29, 2011). "Accellion proffers secure cloud collaboration workspaces". CSO Online. Retrieved April 2, 2021.
- ^ "Accellion introduces new secure collaboration worktool". Engineering and Technology Magazine. March 29, 2011. Archived from the original on September 7, 2011. Retrieved April 2, 2021.
- ^ Drinkwater, Doug (March 12, 2012). "Accellion strives for secure mobile file sharing with 'Dropbox for Enterprise'". TabTimes. Archived from the original on May 16, 2012. Retrieved April 2, 2021.
- ^ Scott, Jennifer (March 13, 2012). "Accellion launches kitedrive Sync its 'Dropbox for the enterprise'". Cloud Pro. Retrieved April 2, 2021.
- ^ Sibley, Lisa (January 4, 2012). "Accellion raises $12M for expansion plans". The Business Journals. Retrieved April 2, 2021.
- ^ Baker, M. L. (February 8, 2007). "Harvard CIO Herds Large File Transfers". eWeek.
- ^ "Solving the File Transfer Problem". Chronicle of Higher Education. January 28, 2008. Retrieved October 14, 2015.
- ^ "Appliance Helps Researchers Share Large Files". Bio-IT World. April 19, 2006. Archived from the original on April 2, 2012. Retrieved September 20, 2011.
- ^ Ben Kepes (January 28, 2014). "Accellion Launches Kiteworks, But Are They Too Late To The Mobile File Sharing Party?". Forbes. Retrieved January 30, 2014.
- ^ Nathan Eddy (January 31, 2014). "Accellion Kiteworks Helps Mobile Workers Boost Productivity". eWeek.[permanent dead link]
- ^ Clancy, Heather (November 28, 2014). "Accellion tackles secure mobile content updates". ZDNet. Retrieved April 2, 2021.
- ^ Rashid, Fahmida Y. (August 31, 2015). "Accellion Kiteworks Business Review". PCMag. Retrieved April 2, 2021.
- ^ "Protect Confidential Content Shared Between Agencies".
- ^ "Accellion CISO Dashboard provides visible, traceable record of sensitive content". Compliance Week.
- ^ "Kiteworks achieves IRAP certification". www.govtechreview.com.au.
- ^ "Kiteworks Launches the Private Content Network".
- ^ "Kiteworks Awarded Cyber Essentials and Cyber Essentials Plus Certification".
- ^ "Kiteworks Announces Industry's First File and Email Data Communications Platform Built on the NIST CSF".
- ^ "Kiteworks releases new digital rights management technology". February 16, 2024.
- ^ "Kiteworks Unveils AI Data Gateway: Revolutionizes Secure Data Access for Enterprise AI Innovation".
- ^ "Cybersecurity Spotlight: How Kiteworks is Redefining Zero Trust from the Data Out". May 12, 2025.
- ^ Mathews, Lee (March 23, 2021). "Oil Giant Shell Victimized In December 2020 Hack". Forbes. Retrieved April 2, 2021.
- ^ a b United States Department of Homeland Security (June 17, 2021). "Exploitation of Accellion File Transfer Appliance | CISA". Cybersecurity and Infrastructure Security Agency.
- ^ Fisher, Dennis (February 26, 2021). "Attackers Continue to Target Accellion FTA Flaws". Decipher. Retrieved April 2, 2021.
- ^ * National Institute of Science and Technology (NIST). "NVD - CVE-2021-27101". National Vulnerability Database (NVD). Retrieved April 2, 2021.
- NIST. "NVD - CVE-2021-27102". NVD. Retrieved April 2, 2021.
- NIST. "NVD - CVE-2021-27103". NVD. Retrieved April 2, 2021.
- NIST. "NVD - CVE-2021-27104". NVD. Retrieved April 2, 2021.
- ^ "Shell Says Personal, Corporate Data Stolen in Accellion Security Incident". SecurityWeek. March 22, 2021.
- ^ Ropek, Lucas (February 11, 2021). "The Accellion Data Breach Seems to Be Getting Bigger". Gizmodo. Retrieved April 3, 2021.
- ^ Jablon, Robert (April 3, 2021). "University of California victim of nationwide hack attack". ABC News. Retrieved April 3, 2021.
- ^ a b February 24, Jonathan Greig in Security on (February 24, 2021). "Kroger data breach highlights urgent need to replace legacy, end-of-life tools". TechRepublic. Retrieved April 2, 2021.
{{cite news}}: CS1 maint: numeric names: authors list (link) - ^ Osborne, Charlie (March 23, 2021). "Oil giant Shell discloses data breach linked to Accellion FTA vulnerability". ZDNet. Retrieved April 2, 2021.
- ^ Montalbano, Elizabeth (March 23, 2021). "Energy Giant Shell Is Latest Victim of Accellion Attacks". Threat Post. Retrieved April 2, 2021.
- ^ "UC Among Targets in Nationwide Cyberattack". UC Davis. March 31, 2021. Retrieved April 2, 2021.
- ^ Duckett, Chris (January 15, 2021). "ASIC reports server breached via Accellion vulnerability". ZDNet. Retrieved April 2, 2021.
- ^ Olenick, Doug (February 16, 2021). "NZ Reserve Bank Issues Update on Accellion Breach". Bank Info Security. Retrieved April 3, 2021.
- ^ a b Wong, Cara (February 17, 2021). "Data of some 129,000 Singtel customers, including NRIC details, stolen in hack of third-party system". The Straits Times. Retrieved April 2, 2021.
- ^ "NSW driver's licence data stolen in Accellion breach". iTnews. Retrieved February 26, 2022.
- ^ Wu, Daniel; Catania, Sam (April 1, 2021). "Hackers leak Social Security numbers, student data in massive data breach". The Stanford Daily. Retrieved April 2, 2021.
- ^ a b Seals, Tara (February 22, 2021). "Accellion FTA Zero-Day Attacks Show Ties to Clop Ransomware, FIN11". Threat Post. Retrieved April 2, 2021.
- ^ Cimpanu, Catalin (February 11, 2021). "Accellion to retire product at the heart of recent hacks". ZDNet. Retrieved April 2, 2021.
- ^ "Accellion Attack Involved Extensive Reverse Engineering". www.bankinfosecurity.com.
- ^ "Accellion reaches $8.1 mln settlement to resolve data breach litigation". Reuters.
