Warchalking in Wireless Networks

War chalking is the drawing of symbols in open spaces to warn about Wi-Fi wireless networks. War chalking occurs when people draw symbols in areas to indicate the presence of an open Wi-Fi network. The symbols used typically say something about the access point. War chalking attracted hackers to break into the said public Wi-Fi networks and gather information about their users.

Differences between War driving and War chalking:

Wardriving	Warchalking
Wardrive is that one is usually stationary and scanning for access points, while the other involves physically driving around to find access points.	Warchalking is the act of marking chalk symbols on the pavement near an entrance to a business or residence that lets people know it’s possible to connect.
Wardrive, the user is usually stationary and scanning for wireless networks	Warchalking, on the other hand, a person actually drives around to find these locations.
Wardriving is a common term used to describe driving around with a laptop in search of access points.	Warchalking involves marking symbols with chalk on the pavement near an entrance to a business or residence that lets people know it’s possible to connect. Warchalking can also be applied to mobile applications, consisting of both businesses and consumers, as a means of organizing their Wi-Fi signal strength.
Wardriving, one is usually stationary while scanning for access points	Warchalking one actually travels around looking for access point locations.
Wardrive, the user is usually stationary and scanning for wireless networks.	Warchalking, on the other hand, a person actually drives around to find these locations.

Countermeasures of War chalking:

• Implementing security awareness training
• Developing cyber security policies
• Installing spam filters and anti-malware software
• Deploying Next-Generation Firewalls (NGFW)
• Installing endpoint detection & response (EDR)