Corporate it security audit compliance

Que:1 

Discuss this statement: “Connecting to a WAN offers many advantages and pitfalls” (Lan-to-WAN connection). Exactly how does connecting to a WAN offer pitfalls and to whom?

Que: 2

Discuss the risks associated with allowing remote users to access the Organization’s network using untrusted WANs. Are their security measures you could put into place to lessen the risk or is this something you would completely stay away from allowing into the Organization?