Idea to further secure crypto

Had this idea today and could care less if someone steals it and implements it, because it could really improve security.

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Issue:

• People get hacked many ways.
• hot girls in dm's
• links
• nft scams
• sim swaps
• stolen keys

Solution: authenticators

Authenticators have been used in business, banking, and security for years. You have a few types that could be used.

• Physical tokens such as a usb that you plug into a computer to authenticate. Not my favorite cause a hacker could theoretically use your computer still.
• Disconnect tokens that are not physically inserted like a usb, instead it is a code generated by the token for a 1 time entry.
• Contactless tokens use a wireless connection, usually blue tooth.

https://preview.redd.it/k37l5zxqgvob1.jpg?width=1440&format=pjpg&auto=webp&s=678bee9775887abcac967cade52216c6d93aecf3

It would be simple for exchanges to implement 1 or 2 of these methods. I'd be excited for a disconnect style token, as I view it as the most secure. There would still be people losing their key just as they lose their keys in current day. Could have a set of like 3 or 4 and keep spares hidden or locked up. It wouldnt be that hard for exchanges to offer this as a option and integrate the optional use for those who want to use such measures. I am sure that people with a million or more would be game for such a security measure.