If you prefer a higher level of transaction security for your DBS iBanking or DBS digibank HK, you can simply choose the “Use Secure Device and/or SMS OTP for all transactions” option via "Preference" > "Change Security Setting" on DBS iBanking and let your Digital Token authenticate.
Note:
Using two factor authentication (2FA) (i.e. SMS OTP and/or the Secure Device) for all transactions would further reduce the risk of unauthorized transaction. If you opt for using 2FA only for transactions that require a higher level of security, you may be exposed to higher risk of unauthorized access.