JP Morgan Chase has informed staff members moving into its new corporate base in Manhattan that they have to share their physical characteristics to gain entry the multibillion-dollar skyscraper.
The financial firm had previously planned for the registration of biometric data at its new high-rise to be discretionary.
Yet, staff of the US's largest bank who have started operations at the corporate hub since August have obtained emails stating that physical scan entry was now "mandatory".
Biometric access requires personnel to submit their eye patterns to enter access portals in the entrance area in place of scanning their identification cards.
The main office building, which apparently required an investment of $3bn to construct, will in time act as a home for 10,000 employees once it is completely filled before year-end.
The financial company did not provide a statement but it is understood that the implementation of biometric data for entry is designed to make the building safer.
There are exceptions for some employees who will retain the ability to use a badge for entry, although the requirements for who will use more standard badge entry remains undefined.
Complementing the deployment of physical identifier systems, the company has also launched the "Corporate Access" digital platform, which serves as a digital badge and center for staff resources.
The app enables employees to coordinate visitor access, use indoor maps of the facility and pre-order dining from the building's multiple on-site dining vendors.
The implementation of tighter entry controls comes as business organizations, notably those with significant operations in the city, look to enhance safety following the incident of the chief executive of one of the leading healthcare providers in July.
Brian Thompson, the head of UnitedHealthcare, was the victim of the attack not far from JP Morgan's offices.
It is not known if the financial firm plans to deploy biometric access for staff at its locations in other major financial centres, such as London.
The decision comes during debate over the employment of technology to monitor employees by their employers, including monitoring office attendance levels.
Earlier this year, all the bank's employees on flexible arrangements were directed they have to report to the physical location full-time.
The bank's chief executive, Jamie Dimon, has referred to JP Morgan's new tower as a "beautiful physical manifestation" of the institution.
Dimon, one of the influential banking figures, lately alerted that the likelihood of the American markets crashing was significantly higher than many investors anticipated.
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