AlpineReplay Data Breach (2019): What Was Exposed & What To Do

In August 2019, reports indicated that AlpineReplay, a snow sports tracking application, had been subject to a data breach affecting 899,000 individuals. The exposed records included names, usernames, email addresses, genders, dates of birth, physical attributes such as weights, and passwords stored as unsalted MD5 or bcrypt hashes. Public detail on the precise timing, method of access, or total volume of records remains limited.

What happened

The breach was reported on August 27, 2019. Available information states that the incident exposed 899,000 unique email addresses along with associated account details. The service was later integrated into the Trace platform. No further technical specifics on how the data was obtained or the duration of exposure have been disclosed in public reporting.

How a breach like this happens

Data incidents involving consumer applications often result from unauthorized access to backend systems that store user records. Attackers may exploit vulnerabilities in application code, misconfigured databases, or compromised credentials to extract stored information. Once obtained, such data sets are sometimes posted or traded online. In cases where passwords are present, their storage format determines how readily they can be processed further.

About AlpineReplay

AlpineReplay operated as a mobile application focused on tracking snow sports activities such as skiing and snowboarding. Services of this type collect user profile information to support activity logging, performance metrics, and social features. The data types typically held include identifiers, contact details, and attributes relevant to physical activity. A breach at an organization handling this combination of personal and account data can affect users who registered for convenience features such as progress tracking or community sharing.

The information in question

The records named in connection with the incident include dates of birth, email addresses, genders, names, passwords, physical attributes, and usernames. Passwords were stored as either unsalted MD5 or bcrypt hashes. No additional categories of information have been confirmed as exposed. Organizations in this sector commonly retain profile data to enable core service functions, though the exact scope of the AlpineReplay data set remains unconfirmed beyond the listed fields.

Why it matters

Exposure of names, dates of birth, and email addresses can facilitate targeted phishing or account linkage across services. The presence of password hashes introduces a separate consideration: unsalted MD5 hashes are more susceptible to offline processing than bcrypt hashes, which incorporate deliberate computational cost. Users who reused credentials may face elevated risk of unauthorized access to other accounts. For the organization, the incident highlights the long-term consequences of retaining user data in older storage formats.

Were you affected?

Individuals who created an AlpineReplay account can review password hygiene across services and enable multi-factor authentication where available. Monitoring email accounts for unusual activity provides an early indicator of misuse. A free exposure scan of an email address against known breach data sets can indicate whether the address appears in publicly referenced records from this or other incidents.

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