Canon EOS-1D X Mark III DSLR Camera (Body Only) - Manual (Page 730)

Security
If security settings have not been properly set, the following problems may occur.
Transmission monitoring
Third parties with malicious intent may monitor wireless LAN transmissions and attempt
to acquire the data you are sending.
Unauthorized network access
Third parties with malicious intent may gain unauthorized access to the network you are
using to steal, modify, or destroy information. Additionally, you could fall victim to other
types of unauthorized access such as impersonation (where someone assumes an
identity to gain access to unauthorized information) or springboard attacks (where
someone gains unauthorized access to your network as a springboard to cover their
tracks when infiltrating other systems).
It is recommended to make use of the systems and functions to thoroughly secure your
network, preventing these types of problems from occurring.
730