Sennheiser Audio Tech Giant Leaks Info of 28,000 Customers Online

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Security researchers have discovered a leaky database exposing the personal information of thousands of Sennheiser customers online.

According to vpnMentor’s latest data breach report, the information of 28,000 customers of German-based professional audio solutions manufacturer was discovered on an unprotected Amazon Web Services (AWS) S3 bucket.

The unsecured server, discovered on Oct. 26, contained over 55 GB of data belonging to customers and businesses requesting samples of Sennheiser audio products between 2015 and 2018, including:

  • Full names
  • Email addresses
  • Phone numbers
  • Home addresses
  • Names of companies requesting samples alongside their number of employees

“The S3 bucket also contained a 4 GB database backup, but this was protected, and for ethical reasons, we didn’t try to gain access,” the researchers said. “While the data breach affected Sennheiser’s customers and suppliers across the globe, the majority of people affected were based in North America and Europe.”

No data is old data

While the exposed data may be old, the chances of customers still using the same email address, phone number and home address are high.

This probability gives any malicious actors that might have accessed the database, plenty of opportunities to conduct targeted phishing attacks against victims.

“If the data was collected using a ’request a sample‘ type form, cybercriminals could use the details to create incredibly convincing phishing emails posing as Sennheiser and trick previous customers into providing additional personal information or clicking a malicious link,” the researcher warned. “Furthermore, due to the number of people exposed in this data breach, cybercriminals would only need to successfully scam a small fraction for any criminal scheme to be considered successful.”

Sennheiser secured the leaky server on Nov. 1 and there has been no evidence of misuse of customer information until now. However, since access by malicious third parties cannot be ruled out, users are advised to be wary of any unsolicited emails and brush up on good cyber practices.

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