Branch staff at some of Britain's biggest banks say rules that require them to store phones in lockers while at work are putting them at risk from colleagues and customers.
Dozens of staff feel that by not having their devices with them at work, they’re unable to safely use the UK’s contact tracing app.
Lloyds Banking Group, along with rival TSB, are among those advising employees to deactivate the NHS Track & Trace app during office hours.
Both banks have advised staff to pause the app's tracing function while at work, according to internal guidance seen by Reuters.
Some banks ask staff and cashiers to store phones away to prevent leaks of sensitive customer data, although this is not formally required by regulators.
Under current government guidelines, users of the NHS app are advised to disable bluetooth or pause the app when away from their phones to avoid false alerts.
Guidance appears to differ elsewhere on the UK high street.
Barclays has not advised staff to turn off the app, while a NatWest spokesman said while the bank encouraged staff to use the app, the use of personal phones in branches is discouraged - although not banned.
TSB was not immediately available for a statement, while Lloyds declined to comment.