It may help you with digital security (9,5)

'digital security' is the definition.
I don't know anything about this answer so I cannot judge whether this works.

'it may help you' is the wordplay.
I cannot really understand how this works, but
'it' could be 'sa' (SA can mean sex appeal, as in 'it') and 'sa' is found within the answer.
'you' could be 'u' (homophones) and 'u' is found within the answer.
This explanation may well be incorrect...

'with' acts as a link.

Can you help me to learn more?