Why in Dubai? First, I was there recently. Second, Dubai
has become one of the most important cities in the world for holding
IT conferences.
All statistics are based on around 3 thousand found WiFi access
points. Let’s begin with the channels Dubai’s WiFi is running
on:

It’s logical to see that channel 6 and 11 are used widely; they’re
often the channels used by default by access point vendors. The
interesting thing is to see that channel 13 is the second most used
channel in the city. Just FYI, the use of this channel is prohibited
in the United States of America, but it’s allowed in most parts of
the world. Channel 13 is being used in 802.11g/n networks, which
shows that most of the access point in Dubai are new and probably
use the 802.11n standard.
Since most of the hardware is modern it would be logical to conclude
that the encryption in Dubai WiFi networks must be WPA2, right? But
unfortunately this is not true.

Indeed, WPA2 is the least-used encryption method. Most of the
networks are open. Maybe in those networks some additional security
filters are applied, like authorization by MAC address or via
captive portals. However, such networks can’t be called secure and
if a user doesn’t have their own VPN connection their data can be at
risk.
Another interesting point is that many SSID names are hidden and not
broadcast publicly.

Maybe this is another reason why WiFi administrators in Dubai think
their networks don’t need WPA2 encryption. If they think so, they
are mistaken, since there are techniques which allow to hidden SSIDS
to be revealed. And if we think about MAC filtering as a security
concept, any MAC address can be sniffed and then spoofed. So it’s
not a good security approach.
Finally if we look at the most popular vendors of access points in
Dubai, we can highlight three of the biggest: Cisco, Linksys (which
is also a subsidiary of Cisco) and Aruba networks share half of the
market in Dubai:

There are other players, but not as significant as the three
mentioned above.
You may know that many VPN services are prohibited in Dubai.
So if an attacker is able to open a non-protected WiFi network, it
exposes users and their sensitive data.
As we have seen, the hardware used in access points allows better
security management, but it looks like there is no a good practice
or policy to enforce this. It exposes users’ sensitive data to many
kind of network attacks.