yes you can use multiple security. but the attacker cant get in if you dont shere your secret kye Whit him. last week my friend lose his all founds from trust wallet because he shere his phrase to unknowns website. just dont shere that one thing
Its the worst thing a user would do and why would you share a key to your gold treasure? It means a total 0 balance to that wallet. How to add multiple layer of security when there is common one to use. 2fa, mobile and different authentication is good but sometimes this can still be compromised. Users can enable this for additional layer but it doesnt mean we are totally safe with that.