Network security specialists help structure, install and manage information security systems. They work to protect information and prevent data loss. Network security specialists monitor and respond to security breaches.

Threats to network security include:

Viruses : Computer programs written by devious programmers and designed to replicate themselves and infect computers when triggered by a specific event
Trojan horse programs : Delivery vehicles for destructive code, which appear to be harmless or useful software programs such as games

Malware: Short for malicious software, is software designed to disrupt computer operation, gather sensitive information, or gain unauthorized access to computer systems. (Spyware, Adware
Vandals : Software applications or applets that cause destruction
Hacker Attacks : Hackers find weaknesses in an established system and exploit them. Attacks can include: reconnaissance attacks (information-gathering activities to collect data that is later used to compromise networks); access attacks (which exploit network vulnerabilities in order to gain entry to e-mail, databases, or the corporate network); and denial-of-service attacks (which prevent access to part or all of a computer system)
Data interception : Involves eavesdropping on communications or altering data packets being transmitted
Social engineering : Obtaining confidential network security information through nontechnical means, such as posing as a technical support person and asking for people’s passwords

Identity Theft: Obtaining key pieces of personal information, such as Social Security or driver’s license numbers, in order to impersonate someone else.

Network security specialists utilize a variety of tools to protect the network. In order to keep the network secure, software must be constantly updated and managed to protect against emerging threats. However, it is important to understand that there is not a single solution that will protect a network from a variety of attacks. All of the tools work together and ensure multiple layers of security.

Network security tools include:

Company security policies: Policy statements that outline users’ roles and responsibilities with regard to security. The policy should outline expectations regarding the use and administration of corporate IT assets.

Antivirus software packages: Protective software designed to defend your computer against malicious software.
Secure network infrastructure: Dedicated network security hardware and software tools such as firewalls and intrusion detection systems provide protection for all areas of the network and enable secure connections.
Virtual private networks: These networks provide secure remote access and data encryption between two different computers on a network.
Identity services: These services help to identify users and control their activities and transactions on the network. Services include passwords, digital certificates, and digital authentication keys.
Encryption: Encryption ensures that messages cannot be intercepted or read by anyone other than the authorized recipient.

American Career Institute offers a PC and Network Design with Security program at the ACI location in Baltimore, Braintree, Cambridge, Columbia, Framingham, Springfield or Woburn.

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