- Enforcing jurisdiction
- Germany · Geography does not establish applicable law.
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- Privacy topics
Telecoms provider (1&1 Telecom GmbH) – €900,000 Fine (Germany, 2020)
Privacy enforcement record
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A telecom company, 1&1 Telecom GmbH, was fined €900,000 for failing to protect customer data during phone authentication. A caller could easily access sensitive customer information just by providing a name and date of birth, which the court found was not secure enough.
What happened
The company allowed unauthorized access to personal customer data through a weak authentication process.
Who was affected
Customers of 1&1 Telecom GmbH whose data could be accessed without proper security measures were affected.
What the authority found
The court ruled that the company violated GDPR's requirement for adequate data protection measures.
Why this matters
This ruling highlights the importance of strong security practices for businesses handling personal data. Companies should review their authentication processes to avoid similar penalties.
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Review needed — 5 March 2026.
Processing notes: amount discrepancy, date discrepancy.
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Original Fine Summary: The Controller is a company offering telecommunication services. A caller could obtain extensive information on personal customer data from the company's customer service department simply by entering a customer's name and date of birth. In this authentication procedure, the BfDI aws a violation of Article 32 GDPR, according to which a company is obliged to take appropriate technical and organisational measures to systematically protect the processing of personal data. Due to the company's cooperation with the data protection authority, the fine imposed was at the lower end of the scale. -- Update: On November 11th, 2020, after an appeal against the fine, the Bonn District Court decided that although the fine is justified in principle, it is unreasonably high. The chamber has therefore reduced the fine from originally EUR 9,55 million to EUR 900,000. One of the reasons for the reduction was that the company's procedure for authenticating customers used for its telephone hotline (requesting only the name and date of birth of the caller) had remained unobjected for a long time and therefore the company lacked a concrete awareness of the problem which leads to the fact that the concrete culpability in this case had to be classified as rather low. Furthermore, according to the court, the violation was also rather minor, as it could not lead to a massive data leakage.
Related Enforcement Actions (0)
No other enforcement actions found for Telecoms provider (1&1 Telecom GmbH) in DE
This is the only recorded action for this entity in this jurisdiction.
Details
Fine Date
11 November 2020
Authority
Bundesbeauftragter für den Datenschutz
Fine Amount
€900,000
Enforcement Tracker ID
ETid-128
About this data
Cite as: Cookie Fines. Telecoms provider (1&1 Telecom GmbH) - Germany (2020). Retrieved from cookiefines.eu
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