StoryBird Data Breach (2015): What Was Exposed & What To Do

People whose email addresses and account credentials were part of the StoryBird incident face the possibility that their information has circulated in data sets since 2015. The breach was reported on 7 August 2015 and involved the exposure of 4 million records containing 1 million unique email addresses along with names, usernames and passwords stored as PBKDF2 hashes. The data later reached Have I Been Pwned through dehashed.com. The scale indicates that a substantial portion of the platform’s user base at the time was affected, even if the exact number of individuals cannot be confirmed beyond the reported unique email count.

Inside the incident

Public records state that the breach occurred in August 2015 and resulted in the disclosure of 4 million records. These records included 1 million unique email addresses together with associated names, usernames and passwords hashed with PBKDF2. No further technical details about the method of access or the duration of unauthorised access have been made public.

The data set was subsequently provided to Have I Been Pwned by dehashed.com. No official statement from StoryBird describing the circumstances of the incident appears in the available reporting.

How a breach like this happens

Incidents involving the extraction of user account tables commonly occur when an attacker obtains direct access to a database server. This can result from remote exploitation of unpatched software, compromised administrative credentials or misconfigured access controls that allow external connections to internal systems.

Once inside the database environment, an attacker can copy tables containing email addresses, usernames and password hashes. The use of a key-derivation function such as PBKDF2 indicates that passwords were not stored in plain text, yet the hashes themselves remain subject to offline attempts at reversal if the attacker possesses sufficient computing resources.

StoryBird and its sector

StoryBird operated as an online platform that allowed users to create and share stories, often combining text with illustrations. Services of this type maintain accounts for registered users so that individuals can save work, publish content and interact with others.

Because the platform required users to supply an email address and create a username and password, it collected the same categories of data held by many consumer web applications. A breach at such a service therefore exposes the core identifiers people rely on for account recovery and authentication across other sites.

What was likely exposed

The confirmed data types are email addresses, names, usernames and passwords stored as PBKDF2 hashes. The breach record lists 4 million records containing 1 million unique email addresses, suggesting that some addresses may have appeared more than once or that additional non-unique fields inflated the total record count.

Organisations in this sector typically store only the information needed to operate user accounts. No evidence has been presented that payment details, private story content or other categories of information were included in the exposed data set.

What's at stake

Individuals whose email addresses and password hashes were exposed face the possibility that attackers will attempt to match the hashes against common password lists. If a password is successfully recovered, the account on StoryBird itself could be accessed, and the same credentials may be tried on other services where the user reused them.

For the organisation, the incident represents a loss of user trust and the administrative burden of notifying affected individuals and improving security controls. The long-term circulation of the data set means that risks do not diminish quickly after the initial disclosure.

What to do if you're exposed

Anyone who used StoryBird should change the password associated with that account and any other service where the same password was reused. Enabling multi-factor authentication on remaining accounts reduces the value of a recovered password.

Readers can enter their email address into a free exposure scan offered by Have I Been Pwned to determine whether their information appears in this or other known breach data sets. Monitoring for unusual login attempts and using unique passwords for each service remain the most direct protective steps.

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