Editing Personal firewall (section)

== Limitations ==
Firewalls help protecting internal network from [[Hacker (computer security)|hackers]], However firewall do have some limitations.

* If the system has been compromised by [[malware]], [[spyware]] or similar software, these programs can also manipulate the firewall, because both are running on the same system. It may be possible to bypass or even completely shut down software firewalls in such a manner.
* A firewall can't notify, if it has been incorrectly configured.
* Firewall may limit access from the Internet, but it may not protect your network from wireless and other access to your systems.
* Firewalls and [[Virtual Private Networks]] are not the only solution to secure private documents and emails that are either sent within an organization or to other business contacts that are outside the organization.
* The alerts generated can possibly desensitize users to alerts by warning the user of actions that may not be malicious.
* [[Software]] firewalls that interface with the operating system or with other firewalls or [[security software]]  at the kernel mode level may potentially cause instability and/or introduce security flaws.<ref>{{cite web |url=https://www.scribd.com/doc/45263670/Limitations-of-Firewall |title=Firewall Limitations |publisher=Brighthub |date=2010-12-14 |access-date=2014-03-28 |archive-url=https://web.archive.org/web/20140814204626/http://www.scribd.com/doc/45263670/Limitations-of-Firewall |archive-date=2014-08-14 |url-status=dead }}</ref>