Security in the Internet

It´s information security as applied to computers and computers networks. Thne field covers all the processes and mechanisms by which computer-based equipment, information and services are protected from unintended or unauthorized access, change or destruction. Computer security also includes protection from unplanned events and natural disasters.

Computer protection: there are numerous ways to protect computers, including utilizing security-aware design techniques, building on secure operating systems and installing hardware devices designing to protect the computer systems.

- Security and systems design: although there are many aspects to take into consideration when designing a computer system, security can prove to be very important. Many organizations are improving security and many types of ciber-criminals are finding ways to continue their activities. Every type of ciber attack is on the rise. 

- Security measures: a state of computer sucurity is the conceptual ideal, attained by the use of three processes: threat prevention, detection and response. These processes are based on various policies and system components, which includes the following: 

. User account access controls and cryptography can protect systems, fails and data.

. Firewalls are by far the most common prevention systems for a network security perspective as they can shield access to internal network services, and block certain kinds of attacks through packet filtering.

. Intrusion Detection Systems are design to detect network attacks in progress and assist in post-attacks forensics, while audic trails and logs serve a similar function for individual systems.               

. Response is necessarily designed by the assessed security requirements of an individual system and may cover the range from simple upgrades of protections to notification of legal authorities, counter attacks, and the like.