I recently went down a rabbit hole to understand how email works. As usual, it’s what we take most for granted that ends up being the least secure.

The biggest change in Wi-Fi 6 is the introduction of Orthogonal Frequency-Division Multiple Access (OFDMA). OFDMA replaces Orthogonal Frequency Division Multiplexing (OFDM) at the PHY layer and brings support for frequency multiplexing across clients. In other words, a Wi-Fi 6 AP can now transmit to multiple clients simultaneously by using different portions of the bandwidth for each client.