That's between 5-6 devices per person globally.

It's all because of physics

​Radio waves and sound waves are alot alike.

• Come up with a way to communicate with everyone at your table, out loud, without the other tables understanding what you are saying.

• You have 5 minutes

More Hz, more data, more diversity, less distance

Wired Equivalent Prot.​

Original Wi-Fi security protocol

Uses 40-64 bit outdated encryption

​​WEP

​Replaced encryption with TKIP (temporal key integrity prot.)

Now outdated and vulnerable

​​WPA

​Uses AES 128 or better encryption. Replacing TKIP.

Most common currently.

​​WPA2

​Uses 192 or better encryption

Uses 4-way handshake

Individually encrypted

​​WPA3

SSIDs (Service Set Identifier)

You can hide your SSID by disabling broadcasting.
Now you have to manually set up connections on each device.

​Hidden is best

Default SSIDs are commonly used by beacon spamming and Evil Twin attacks.
If you need a publicly broadcasted name, use something unique but not revealing.

​Default is bad