Jar­gon buster!

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2FA Two-fac­tor au­then­ti­ca­tion. A sec­ondary layer of se­cu­rity for on­line ac­counts, typ­i­cally in­volv­ing a phys­i­cal de­vice.

Port A num­ber that iden­ti­fies the type of com­mu­ni­ca­tion be­tween two com­put­ers over a net­work or the In­ter­net.

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