In the technology exist many types of security for hardware or software, in this time I going to talk about web security that means keep a web server and its application protected. Web applications are used day by day for millions of people and if we want to build a web service we need to know the basic of its security because many times in this service we put our personal data, credit card information, etcetera. We need to be a good actor in internet and we need to protect our web service from hackers because when a service was hacked means that could be a brief to do spam, share malicious code, steal information or just do a bad reputation about the web service.
Some recommendation to has a good web security could be check and do a good configuration of the server, communication like telnet, ports, DNS, put authentication in the service and filters. But even if you follow all recommendations and have a lot of certificates, any system is not totally secure for this reason we need to be update every day about new technologies or security fails in technology and check every day our systems.
Talking about Computer and Information Security 