I'd like to confirm that it's quite simple to add MasterKey to the ACSI login which would create seamless access for users and increase their security at the same time.

Apricot will need to do this integration for you and although the work is trivial they will want to understand it thoroughly beforehand. Could you make an introduction for me to speak with them about it, please?

In three bullets:
99% of cyber-attacks target PCs/Smartphones. The goal is identity theft, taking over online accounts to steal money, redirect financial transactions, or access sensitive private data.
BankVault gives users Passwordless access to online web services and secures user input of any credentials such as PINs, CVV codes, Encryption Keys, etc.
It does this seamlessly without any client software and is deployed with just 20-lines of code in the webserver.
This radically simple new approach to Passwordless Authentication has a number of compelling benefits:
For users, there is no requirement to remember or entering user credentials.
For hackers, there is no single attack surface making it incredibly difficult to compromise.
For online services, frictionless access increase user engagement which creates sticky customers. Strong security builds trust. This Win+Win for customers is a powerful business driver for online service providers.
Gartner predicts that by 2022, 90% of mid-market enterprises will have adopted some form of Passwordless methods, in at least 50% of use cases. However, adoption to date has been as slow as a glacier because changing authentication is a major project requiring the full focus of a capable team. The scarcest resource is the technical manpower to do it. BankVault solves this problem.

Simple, low-cost deployment (in hours, not months) make this 10-100x faster and simpler than competing solutions.
No infrastructure changes
No client software
No user setup
I've included a 1-pager attached and here is a link to the pitch deck.
PS. We pioneered the field of Remote Isolation /Remote Browsing and signed Equifax. Our technology was presented to the US President's Senior Advisor on Cybersecurity. We won Top Fintech Startup worldwide in Silicon Valley Forum's World Cup Tech Challenge. We have 6 Patents filed worldwide, with several products in market supporting Consumers, SMB's and Enterprises.