Businesses can rely and depend on Virtual Private Networks—VPNs—that run over the Internet.
VPNs, provide secure connections between individual users and their organization's network over the Internet .
They provide more secure site-to-site connections.
They transfer information much faster than WANs, and most importantly suitable for small and medium-sized businesses having multi location sites .
VPNs are much less expensive, since you can use a single leased line to the Internet for each office, cutting down on broadband costs.