Tesco Bank Secure Fileshare uses your network credentials to login to Box. Continue to login to Box through your network.
If you are not a part of Tesco Bank Secure Fileshare, continue to log in with your Box.com account.
Data transferred via Box.com can be accessed from the US and the laws there allow the authorities to access data held by private companies.
If personal data is involved in your transfer using Box.com, it is a DPO requirement that it is correctly protected with 7Zip before you transfer it.
Please contact 05_TB_DataProtectionOffice@tescobank.com if you have any questions.