DaFont Data Breach (2017): What Was Exposed & What To Do

In May 2017, the font-sharing website DaFont experienced a data breach that exposed 637,000 user records. The incident was reported on May 16, 2017, and involved usernames, email addresses, and passwords stored as unsalted MD5 hashes. Public records indicate the breach resulted from a SQL injection vulnerability that multiple parties are alleged to have exploited. Such incidents occur against a backdrop in which web application flaws continue to enable large-scale data exposures, often affecting services that hold routine account information for millions of users.

What happened

DaFont, a site that allows users to download and share fonts, suffered a breach in May 2017. The event resulted in the exposure of 637,000 records containing usernames, email addresses, and passwords. The passwords were stored using the MD5 hashing algorithm without additional salting.

Contemporary reports attributed the intrusion to a SQL injection vulnerability. The facts available do not specify the exact date of the intrusion itself, the method of discovery, or whether the data were subsequently distributed on public forums.

How a breach like this happens

SQL injection occurs when an application fails to properly validate or sanitize input supplied through web forms or URLs. An attacker can then craft queries that cause the database to return or modify records it was not intended to expose. Once access is obtained, an attacker can extract entire tables of user data.

Storage of passwords as unsalted MD5 hashes further reduces the protection of credentials. MD5 is a fast, outdated algorithm that permits rapid testing of possible passwords against the stored values, and the absence of unique salts allows precomputed tables to be used across many accounts at once.

About DaFont

DaFont operates as an online repository where designers and users upload, search for, and download font files. Like many content-sharing platforms, it requires visitors to create accounts to upload material or participate in community features. The service therefore maintains records of usernames, contact details, and authentication credentials for its registered users.

A breach at a site of this type is consequential because the exposed information can be combined with data from other incidents to facilitate account takeovers on unrelated services where users have reused credentials.

The information in question

The breach is reported to have exposed usernames, email addresses, and passwords. The passwords were stored as MD5 hashes without salting. No other categories of data, such as payment information or private messages, are identified in the available facts.

Organisations that operate user accounts commonly store additional profile details, yet the precise scope of information accessed in this case remains limited to the three data types named above.

Why it matters

Compromised email addresses and usernames can be used for targeted phishing or to locate the same individuals on other platforms. Weakly hashed passwords increase the likelihood that attackers can recover the original credentials and attempt access elsewhere.

For the organisation, the incident highlights the long-term operational cost of outdated password storage practices and the need to respond to vulnerability reports promptly. Affected individuals face the ongoing task of monitoring accounts and updating credentials across services.

If your data was in this breach

Individuals who suspect their information may have been included should change passwords on DaFont and on any other sites where the same credentials were used. Enabling multi-factor authentication where available adds a further layer of protection.

Running a free exposure scan of an email address against known breach data sets can help determine whether the address appears in this or other documented incidents. Regular review of account activity and prompt reporting of suspicious login attempts remain practical ongoing measures.

AICompiled with AI assistance from public sources and published under our editorial standards.