Nitro Pdf Data Breach !exclusive! -

| Field | Description | Cryptographic Protection | |-------|-------------|--------------------------| | email | Plaintext email address | None | | password_hash | Hash of user password | MD5 (no salt, single iteration) | | full_name | Plaintext name | None | | user_id | Numeric internal ID | None | | signup_date | Timestamp | None | | last_login_ip | IPv4/IPv6 address | None (stored in plain) | | account_type | Free/Trial/Pro | None |

The threat actors likely exploited a vulnerability in an internet-facing cloud database or used compromised administrative credentials to gain initial access to Nitro’s Amazon Web Services (AWS) or Microsoft Azure environments. Once inside, the hackers performed lateral movement to locate the primary user databases and document repositories, quietly downloading terabytes of information without triggering immediate security alarms.

MFA prevents threat actors from gaining access to user accounts even if they successfully crack or buy a leaked password.

The massive Nitro PDF data breach originated in September 2020 nitro pdf data breach

Nitro reset passwords in 2020, but if you haven’t logged in since, your account may still be vulnerable. Go to and change your password to a new, unique, strong password (16+ characters, using a password manager).

This last point is crucial: Nitro did store passwords in plaintext. If any service claims otherwise, treat it as misinformation.

(CVSS 7.8): A local privilege escalation vulnerability in the MSI installer that could allow attackers to gain SYSTEM-level privileges. | Field | Description | Cryptographic Protection |

The intruders, later identified as the notorious hacker group ShinyHunters, exploited a misconfiguration in Nitro's cloud infrastructure to gain unauthorized access to its user and document databases. This breach is notable not only for its scale but also for the quality and depth of the data seized—a combination of personal identifiers and sensitive corporate documents that transformed a routine credential theft incident into a top-tier strategic threat.

Hacker leaks full database of 77 million Nitro PDF user records

The breach impacted Nitro PDF’s Cloud service, which users utilize to share, sign, and collaborate on documents. The leaked database weighed over 14 gigabytes and contained approximately 77 million user records. The stolen data fields included: Full names Email addresses Bcrypt-hashed passwords Company names IP addresses Titles and system roles The massive Nitro PDF data breach originated in

For the cybersecurity industry, the Nitro PDF incident reinforced several critical security practices:

The breach involved approximately 70 million user records .

Tech giants utilize various PDF utilities across different departments, making them vulnerable to vendor leaks.

What elevated the Nitro PDF breach from a standard leak to a high-profile corporate threat was the list of affected users. Nitro PDF is heavily utilized by major multinational corporations. The leaked data contained references to accounts and documents linked to: