Deutsche Bank has issued a final reminder to its customers: anyone who has not switched to the bank’s new security systems by August 25, 2025, will face immediate access restrictions on their online banking accounts.
The move comes as part of Deutsche Bank’s ongoing digital transformation, aiming to replace outdated and vulnerable methods with modern, more secure solutions. For customers who still rely on the traditional mobileTAN procedure, time is running out.
Why Deutsche Bank is Ending mobileTAN
For years, mobileTAN allowed customers to confirm online transactions by receiving a TAN code via SMS. However, experts have long warned that this method is outdated and increasingly unsafe. Fraud attempts such as SIM-swapping have exposed significant weaknesses in SMS-based verification.
Deutsche Bank is therefore taking decisive action. As of August 25, access will only be possible using the photoTAN or BestSign methods. Customers who missed the August 15 deadline to activate one of these options may already face issues and are strongly encouraged to contact the bank immediately.
The New Security Standards: photoTAN and BestSign
Deutsche Bank emphasizes that the shift is not only about security but also about improving customer convenience.
- photoTAN: Customers can use a dedicated app that generates TAN codes with a single tap. The app also supports graphic scanning on a computer or push notifications for instant confirmations.
- BestSign: Already familiar to Postbank users, this method relies on digital signatures, making transactions both secure and seamless.
Both methods are designed to meet modern cybersecurity standards, offering encrypted communication and a smoother user experience.
What Customers Need to Do
Customers still depending on mobileTAN need to act quickly. The photoTAN app can be downloaded and set up within minutes. BestSign is another alternative, particularly suited for those who prefer biometric or password-based digital signatures.
For anyone who has not yet received or activated their security procedure letter, Deutsche Bank recommends reaching out to customer service without delay. Failure to act will result in a complete lockout from online banking services starting next week.
Why This Matters for Deutsche Bank Customers
The new system means that Deutsche Bank accounts will now be more resistant to common cyber threats. By consolidating security under photoTAN and BestSign, the bank not only streamlines its digital infrastructure but also ensures higher protection for millions of customers.
Financial analysts point out that Deutsche Bank’s decision mirrors a broader industry trend. Other European banks are also phasing out SMS-based TAN methods, responding to EU-level regulations and customer demand for safer, faster digital banking.
Looking Ahead
While the sudden cutoff may cause frustration for some, Deutsche Bank insists that the move is in customers’ best interests. Digital banking is evolving, and banks must stay ahead of increasingly sophisticated cybercriminals.
For customers, the message is clear: update your security procedure immediately to avoid disruptions. With photoTAN and BestSign, Deutsche Bank promises a future of safer and more efficient online banking.
For more updates on banking, finance, and startups shaping the digital economy, check out Startup News.








