Discuss the current methodologies used to secure wired or wireless

Q.Discuss the current methodologies used to secure wired or wireless networks via current Firewall technologies and the potential exposures that currently exist.  How well do firewalls protect against these threats?  Discuss at least one current breach in firewall and network securities that has been reported in the news in the past 3 years. 
: post must be at least 340 words and contain APA citations and references for the articles that you research and wrote about.