[News](/news) 77 million PDF user records published online [Blog](/blog)[Breaches](/breaches)[Resources](/resources)[News](/news) # 77 million PDF user records published online ##### [Edward Kost](/team/edward-kost) January 28, 2021 Nitro, a PDF creation and editing solution has had 77 million of its records breached and published onto a hacker forum.  ShinyHunters is the hacker group responsible for the attack. This cybergang has made a reputation for selling breached data on hacker forums.  The breach occurred in September 2020. Nitro announced the breach in its [official statement](https://cdn-api.markitdigital.com/apiman-gateway/ASX/asx-research/1.0/file/2924-02296429-3A553116?access_token=83ff96335c2d45a094df02a206a39ff4), assuring everyone that it was a minor incident.   “\[Nitro] advises of an isolated security incident involving limited access to a Nitro database by an unauthorised third party” Nitro said in their statement. But this “low impact security incident” developed into anything but that.  Bleeping Computer discovered a data dump on a hacker forum comprising 70 million records. It was for sale at a starting price of $80,000. Now, a threat actor claiming to be affiliated with ShinyHunters, has reposted an updated list of the breached data, this time giving it away for free. The total number of records have risen to over 77 million. The 14 GB of breached data include the following sensitive information: * User IDs * First names * Last names * Account IDs * Addresses * Zip codes * City, State and Country details * Phone numbers * Email addresses This data breach was significant enough to be recorded in the Have I been Pwned list of compromised businesses. Nitro has a client base of over 10,000 businesses, so this single breach impacted the businesses using the software - that’s the insidious [nature of third-party vendor breaches](https://www.upguard.com/product/vendorrisk). Some of the impacted businesses included Microsoft Google and Apple.  The Nitro software is used for more than just simple PDF editing, businesses commonly use the solution to sign highly sensitive legal and financial documents. If such delicate information falls into the wrong hands, the negative impact to affected businesses will be significantly higher.\ \ This incident occurred on the same day ShinyHunters breached [2.28 million dating app user records](https://www.upguard.com/news/meetmindful-data-breach), making them freely available for download on a hacker forum. ## How secure is Nitro? Nitro develops software solutions for PDF document editing and electronic signature management. The company offers tools for creating, converting, combining, and signing PDF files across multiple platforms, along with workflow automation and compliance features for digital document processes. * View our free preliminary report on Nitro’s security posture * 13 risk factors, including email security, SSL, DNS health, open ports and common vulnerabilities [View Nitro's score](/security-report/nitro) [View score](/security-report/nitro) [https://www.gonitro.com/](/security-report/nitro) ### Sign up for our newsletter UpGuard's monthly newsletter cuts through the noise and brings you what matters most: our breaking research, in-depth analysis of emerging threats, and actionable strategic insights. ## Latest news Stay up-to-date with the latest news in cybersecurity. [](/news/hugging-face-data-breach-2026-07-20) #### [Hugging Face data breach: key facts and what we know so far](/news/hugging-face-data-breach-2026-07-20) A data breach involving Hugging Face was reported in July 2026. See incident details, impact on customers, and recommended security measures. ##### [UpGuard Team](/team/upguard) July 20, 2026 [](/news/ey-data-breach-2026-07-19) #### [EY data breach: what happened and what's at risk](/news/ey-data-breach-2026-07-19) A data breach involving EY was reported in July 2026. See incident details, impact on customers, and recommended security measures. ##### [UpGuard Team](/team/upguard) July 15, 2026 [](/news/south-florida-injury-convenient-care-data-breach-2026-07-16) #### [South Florida Injury & Convenient Care data breach exposes names and Social Security numbers](/news/south-florida-injury-convenient-care-data-breach-2026-07-16) A data breach involving South Florida Injury & Convenient Care was reported in July 2026. See incident details, impact on customers, and security measures. ##### [UpGuard Team](/team/upguard) July 15, 2026 [](/news/park-west-psychology-data-breach-2026-07-16) #### [Park West Psychology data breach: what happened and what's at risk](/news/park-west-psychology-data-breach-2026-07-16) A data breach involving Park West Psychology was reported in July 2026. See incident details, impact on customers, and recommended security measures. ##### [UpGuard Team](/team/upguard) July 15, 2026 [](/news/fall-river-municipal-credit-union-data-breach-2026-07-16) #### [Fall River Municipal Credit Union data breach: what happened and what's at risk](/news/fall-river-municipal-credit-union-data-breach-2026-07-16) A data breach involving Fall River Municipal Credit Union was reported in July 2026. See incident details, impact on customers, and recommended security measures. ##### [](#) July 14, 2026 [](/news/npcil-data-breach-2026-07-16) #### [NPCIL data breach: World Leaks claims exposure of Kudankulam Nuclear Power Plant files](/news/npcil-data-breach-2026-07-16) A data breach involving NPCIL was reported in July 2026. See incident details, impact on customers, and recommended security measures. ##### [UpGuard Team](/team/upguard) July 14, 2026 [View all news](/news) ## Protect your organization Get in touch or book a free demo. [Contact sales](/demo) [Free demo](/demo) ##### Free instant security score ## How secure is your organization? Request a free cybersecurity report to discover key risks on your website, email, network, and brand. * Instant insights you can act on immediately * Hundreds of risk factors including email security, SSL, DNS health, open ports and common vulnerabilities [Free score](/instant-security-score)