October 2025 — Deutsche Bank, Postbank, FYRST, norisbank
The Deutsche Bank Group is introducing the bank card activation procedure for BestSign – activation of the security procedure via bank card.

October 2025 — Baader Bank
Since October 2025, Baader Bank has been using Seal One technology for secure order authorisation.

August 2025 — Deutsche Bank
Deutsche Bank is introducing BestSign based on Seal One technology in its new online banking service; the mobileTAN service is being discontinued.

Mid-2025 — Deutsche Bank, Postbank, FYRST, norisbank
The Deutsche Bank Group uses the secQcode activation procedure for BestSign – a convenient way to activate the security method.

Q2 2025 — norisbank
Since the second quarter of 2025, norisbank has been offering BestSign with Seal One – via the app or a dedicated device.

January 2024 — Milestone
Seal One breaks the one-billion-transactions-a-year mark for the first time in 2023.

November 2023 — MorgenFund / DWS
Since November 2023, MorgenFund / DWS customers have been able to use Seal One in the MorgenFund / DWS app.

February 2023 — Aareal Bank
Since 2023, Aareal Bank has been using Seal One technology both in its BK01 app and via Seal One hardware devices for payment authorisation.

August 2022 — Heise Ratgeber
Postbank has discontinued the chipTAN procedure for online banking. (Article in German)

May 2022 — Postbank
Postbank is phasing out chipTAN – BestSign, based on Seal One, is set to become the main security method for millions of customers.

August 2021 — DKB
With the new DKB app and modern banking, DKB customers have been using the Seal One procedure for logging in and authorising transactions since August 2021.

August 2021 — FNZ Bank (ebase)
FNZ Bank (formerly ebase) is introducing Seal One-based security factors – via an app (FNZsecure/ebaseSecure) or an additional Seal One device.

February 2021 — Seal One 2200 TF
With the Seal One 2200 TF, Seal One is launching a new device for people with visual impairments – in addition to the display, it features a built-in loudspeaker that reads out the display aloud.

January 2020 — Payment and Banking Award
Seal One has won the ‘Golden Transaction 2020’ Payment Award in the User Experience category.

September 2019 — TME
Interview with Jürgen Weiß, CFO Seal One AG (Article in German)

August 2019 — IT-Finanzmagazin
Interview with Jürgen Weiß: Seal One considers an authentication strategy that relies solely on apps to be risky. (Article in German)

May 2019 — Seal One 2200
With the Seal One 2200, Seal One is launching a USB device with a large display.

October 2018 — Seal One 7300pro
With the Seal One 7300pro, Seal One is launching a new pro-device with Bluetooth and USB.

Spring 2018 — Verimi
Since its launch in spring 2018, the Verimi identity platform has relied on Seal One technology.

February 2016 — IT-Finanzmagazin
Seal One’s BestSign is presented as a convenient, secure alternative to traditional TAN procedures (Article in German)

September 2015 — Postbank Tip of the Week
BestSign – maximum security through digital signatures in online banking. (Article in German)

January 2015 — ifun.de
With BestSign, Postbank enables online bank transfers to be authorised using Touch ID. (Article in German)

March 2014 — NEXT GENERATION FINANCE
Mobile banking without a separate TAN device – Seal One as a pioneer in digital signatures. (Article in German)

July 2011 — Postbank
Postbank is the first major partner to launch BestSign, based on Seal One technology – secure online banking at the touch of a button.