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Back to segmented networks?

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Organisations need to move back to the days of segmented networks, to gain full visibility of network traffic and combat growing threats inside their networks, says JOHN WARD, Systems Engineer, Africa at Fortinet.

The risks inside a corporate network are usually far greater than organisations think. In fact, there may be more threats within an organisation’s perimeter defences than outside of them.

Mobile devices used in unsecured environments may bring malware directly into the core networks. Cybercriminals who gain access to the network have free access to everything once they bypass the perimeter firewall. Internet of Things devices and cloud connected printers connected to the network are typically left unsecured and unmanaged.

In addition, a poorly managed network that offers little or no visibility typically performs badly, impacting productivity and efficiency and the overall cost of doing business. This too, should be considered a serious business and productivity risk.

Information security professionals and risk managers are well aware that an ‘insider threat’ exists, but typically don’t have the resources to effectively mitigate the risk, and often they do not realise how network configuration impacts their threat exposure. Most organisations put in bare minimum perimeter firewalls to meet auditor requirements, and run flat layer 2 networks for cost control and ease of administration.

In an environment fraught with increasingly advanced threats, this architecture can prove to be a costly mistake. Consider for one minute that any users’ pc could unknowingly be directly tethered to the internet via their phone yet still be connected to the internal LAN.

In many consultations with potential clients, we have discovered perimeter firewalls up to ten years old and long out of their support contracts, still in place as the organisation’s only network defence. When we put FortiGate behind these incumbent firewalls into the core to analyse the state of the network, we almost always turn up issues the organisation knew nothing about.

There may be broadcast storms impacting users across the network; there may be old applications still running that IT management thought were long since phased out; there are frequently configuration issues and legacy systems impacting the overall network performance and increasing its risk profile.   At least 60% of the time, when organisations get their first true view of network traffic, they are unpleasantly surprised.

To address the threats inside the network and optimise network performance, organisations need to move away from the flat layer and back to the segmented network model of the past. Only this time, they need to lock down the segmented network without compromising performance, for example by installing Fortinet’s FortiASIC powered internal segmentation firewalls.

Deployed transparently in L2 mode or bump in wire and ASIC driven wire speed capable, these do not require extensive network overhauls. They simply plug into the network to deliver visibility into network traffic as well as application control, web filtering, advanced threat protection, mobile security and antivirus.

However, it is crucial that these internal segmentation firewalls do not cause bottlenecks that slow down the overall performance of the network. An effective internal segmentation firewall should support wire-speed internal traffic with multi-tens-gigabit performance, sitting at strategic choke points of the internal network. There, it provides policy-driven segmentation, instant visibility of traffic in and out of the network asset and real time protection of the asset, serving as an important component of the overall security suite. If required, these firewalls can even provide a secure ring around the legacy equipment to assure security and control.

With segmentation and full visibility, organisations are able to significantly improve governance and risk management, monitor and manage threats in real time, and optimise network performance by discovering where to clean up the network, or reconfigure and remove redundant systems.

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Win a Poster Heater with Gadget and Takealot.com

This winter Gadget and Takealot.com are giving away three Poster Heaters, which look like posters but become heaters when you plug them in.

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Three Gadget readers will each win a unit, valued at R550 each. To enter, follow @GadgetZA and @Takealot on Twitter and tell us on the @GadgetZA account how many Watts the heater consumes.

What’s the big deal about these heaters? Many of us are struggling to keep the balance between soaring electricity costs and the need to keep warm this winter.

However, the recently launched Poster Heater by EasyHeat and distributed in South Africa by Takealot.com is not only one of the most cost effective electric heaters currently on the market, it is also easy to setup and use.

As the name indicates, it is a poster similar to one you would hang on a wall. But, plug it in and it turns into a 300 Watt heater. The Poster Heater isn’t designed to heat hallways or large rooms, but rather smaller ones like a bedroom or a baby’s nursery or a dressing room.

It uses radiant heating, which means that it heats up in a couple of minutes and the heat is directed at the objects or people around it, quickly taking the chill out of the air and providing a comfortable ambient temperature.

The other advantage of radiant heating is that it doesn’t dry out the air like infrared or gas heaters. Users also don’t have to worry about their children or pets getting too close to it because, even though it gets hot, it can be touched.

To enter the competition follow the steps below:

Competition entry details:

1. Follow @GadgetZA and @Takealot on Twitter. (We will ONLY be accepting entries via Twitter, so please don’t enter through the comments section of this article.)

2. Tell us on Twitter, via @GadgetZA, mentioning @Takealot in your posting, how many Watts the Poster Heater consumes.

cleardot.gif3. The competition closes on 31 July 2018.

4. Winners will be notified via Twitter on 1 August and Takealot.com will be in touch to organise delivery.

5. The competition is only open to South African residents.

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Happy Emoji Day! Here’s 10 reasons to be cheerful

First created by Shigetaka Kurita in 1999, the emoji has become a huge part of everyday communication. Whether you love them or hate them, flying dollar bills, applauding hands and rolling eyes are here to stay.

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Scientist suggest that the use of emojis will help us gain the same satisfaction from digital interactions as we enjoy from personal contact.

Almost two decades later, and we have over 2600 unique emojis to perfectly express what we feel, thank you Mr Kurita! Join HMD, the home of Nokia phones as we celebrate World Emoji Day on the 17th of July with these interesting emoji facts:

The most popular emoji used is “Person Shrugging”

1.       The Nokia 3310 was chosen as one of the first 3 “National” emojis for Finland… it represents unbreakable!

2.       South Africa’s favourite emoji is the “Kiss and wink”… how sweet SA!

3.       French is the only language where a ‘smiley’ does not top the list for its use

4.       On average, over 60 billion emojis are sent on Facebook every day

5.       For the first time ever, the Oxford Dictionaries Word of the Year was a pictograph! The “Face with Tears of Joy” was crowned word of the year in 2015

6.       According to Emojipedia, some of the most requested emoji’s include afro, a bagel and hands making a heart

7.       To include all races, a diversity pack was released in 2017

8.       It has become so trendy that the Museum of Modern Art displays the original emoji collection on canvas

9.       In 2009, Herman Melville’s classic Moby Dick was completely translated into emoji’s

 

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