network security

By: Aalto  11-11-2011
Keywords: IT Consulting, Network Security, Data Protection

At Aalto, one of our many IT specialties is

network security

. We ensure the protection of our client’s data by providing quality systems and processes to prevent abuse.

We are a Gauteng based IT Consulting Company offering

network security

services to companies in the Johannesburg and greater Gauteng area.

from Aalto.

What is network security?

Network security

is the provision of measures and solutions to prevent and monitor unauthorized access, abuse and attempted modification of your computer network and network-accessible resources.

At its most basic,rong>network security starts with the authentication of users, usually with a username and password. Protection can be increased by adding a security token or certificate to the authentication process, and thereafter a fingerprint or retinal scan in appropriate circumstances. After authentication, your firewall acts as a further protective layer, by allowing selective access to services dependant on a user’s credentials. While firewalls can and do effectively prevent unauthorized access, they are no longer sufficiently effective against harmful content. Today, your network is also vulnerable to worms, trojans and other malware that require additional anti-virus software and intrusion-prevention systems to prevent and destroy these malicious attacks. Advanced intrusion-detection systems monitor the network for anomalies. Any unexpected or suspicious content or behavior is effectively blocked and your data and resources remain protected.

Sadly, it is an unpleasant fact today that sophisticated means of communication attract sophisticated levels of attack. The cunning and craft of malevolent individuals seems to know no bounds, but we make it our business to stay on top of it all and ensure that your data protection exceeds the skill of those intent on breaching it.

The potential data vulnerabilities are far too numerous to mention and can come from both external and internal sources. In addition to detecting and destroying malware, our processes protect your data on all conceivable levels by, for example:

  • Monitoring abnormal employee activity and logging it for later audit and analysis.
  • Securing communications between hosts over a network, by encryption through VPN tunnels to maintain privacy.

Our policy

All of our clients receive personal

network security

policies, tailored to their specific needs. Generally, we recommend a minimum three-tier data protection plan, consisting of:

Entry-point data protection

The entry point is where your internal network first encounters external networks. Be it through a browser, a VPN (Virtual Private Network) the internet and any other WAN (Wide Area Network), it is at this point that your organisation is most susceptible to malware threats and external attacks. A resilient firewall or Unified Threat Management System keeps you protected. We recommend Cyberoam UTM (link) and Cisco products as our experience has proven them far superior to their competitors.

End-point data protection

An end-point is any user device capable of storing electronic data that has been authenticated on the network. These include a pc, notebook, smart hand-held device, cell phone, memory stick, CD and DVD. Unfortunately, they are susceptible to content and malware from many sources in addition to the internet. For example, they can easily be infected by the insertion of USB memory sticks and similar devices, even when not connected to the network. Powerful anti-virus and internet security software is vital to protect both these devices and your network. We recommend Sophos and Trend micro suites to protect end-point connections and their users. Additionally, Cyberoam End-point Protection (link) can provide a further layer of protection by encrypting data, and controlling applications and attached devices.

User Awareness

to ensure a secure company network.

Keywords: Data Protection, IT Consulting, It Consulting Company, Network Security

Other products and services from Aalto


it consultation

It provides you with access to a multitude of experience and expertise, whereas individual IT employees can offer only limited skills. We are a Gauteng based IT Consulting Company providing IT solutions in Johannesburg and the greater Gauteng area. Switching to Aalto could be easier than you think and the benefits will undoubtedly surprise and impress you.


data protection

On the hardware side, we have found HP or Quantum LTO storage drives to outclass the competition, while Symantec Backup Exec or Acronis Backup and Recovery receive our best rating for storage management software. We have the expertise and experience to provide you with rapid disaster recovery systems that could be crucial to the continued operation of your IT infrastructure and your business.


sophos mobile control

Data protection, policy compliance and device control for mobile devices Give your users the latest mobile technology while keeping your organization’s data safe. Controls the use of features or apps, like games or Bluetooth, that could lead to productivity concerns, data breaches or compliance issues. Monitor and control devices on your network with over-the-air control and a self-service portal that makes mobile protection easy.