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Segurança online num mundo de Internet of Things

segunda-feira, 09 de janeiro de 2017 - 10:50

Em março de 2013 o ataque distribuído de negação de serviço (DDoS) à Spamhaus foi de longe o mais devastador a que se tinha assistido até à altura. Estima-se que foram injetados mais de 300 gigabits por segundo (Gbps) de tráfego que bloqueou o acesso à principal entidade coletora da informação que está na base dos filtros de anti-spam.

Desde então esse ataque foi o padrão para ataques de larga escala, mas nos últimos três meses temos assistido a ataques que bateram todos os recordes.

Em setembro um ataque à rede da Akamai visou o site de Brian Krebs, um jornalista especialista em segurança informática que desde há vários anos investiga o mundo do cyber-crime. Chegou a... Ler mais

The unsung hero of ecommerce: the humble database

segunda-feira, 29 de agosto de 2016 - 19:30

On October 1st, 1962, Vassili Arkhipov – a Russian submarine commander – saved the world.

Two of his fellow commanding officers, having been out of contact with Moscow for a number of days, thought that war had broken out above the waves and gave the green light to launch a nuclear torpedo in response to American depth charges. A move which would have guaranteed nuclear war.

In a move of spectacular bravery, Vassili, whose agreement was needed to authorize the launch, refused to consent and persuaded the other two to surface and await orders.

Yet almost no one has heard of him today, despite pulling off one of the most courageous and proverbial-bacon-saving... Ler mais

Brexit and IT: can you predict the future?

sexta-feira, 26 de agosto de 2016 - 23:21

Last week, the United Kingdom voted to leave the EU, throwing up huge questions over the future of the country. Among the biggest are those surrounding competitiveness of the pound and the economy as a whole, and, in the IT industry, the questions are flying as thick and fast as anywhere else.

What is going to happen?

Perhaps there will be changes regarding data sovereignty. The EU General Data Protection Regulation is set to come into force in 2018, at which point Britain may not have completed the process of leaving the EU. Perhaps due to related concerns data centres will cease being built in the UK as uncertainty makes it an unattractive proposition compared to... Ler mais

Connecting to the public cloud

sexta-feira, 26 de agosto de 2016 - 23:15

Just put it in the public cloud. Easy peasy.

Simple as putting something on a shelf, surely? But with less chance of putting your back out, like you did last Christmas reaching for that tinsel right at the back of the cupboard.

But as you know, the public cloud is not that simple. AWS might be pretty good, but you’ve still got to get there, which means you have to go over the public internet, a task which carries the technological risk equivalent of taking down a box of Christmas decorations after a quart of eggnog.

So, the public cloud doesn’t exist in a silo. It has to be integrated into your IT estate, and the network is the connecting piece.

If your... Ler mais

Fear and loathing in IT: how to transform your teams’ communications

quinta-feira, 11 de agosto de 2016 - 19:59

Ever known someone who just sucks at communicating? Who can’t be honest about how they feel?

“I love you.”

“Er, cool.”

Really?!

That person is fooling no one. Except perhaps their partner. Unnecessary pain ensues.

Take-away: communicating openly with other human beings reduces suffering. But it’s very hard to do – which is precisely why it’s so valuable.

In the IT world, things are no different. If resentments build between individuals or teams, information is withheld, a sense of competition prevails, an unwillingness to take responsibility develops or any other kind of organisationally-maladaptive behaviour emerges, unnecessary pain will... Ler mais

7 Commandments of a bullet-proof Business Continuity Plan

segunda-feira, 11 de julho de 2016 - 20:13

You want your business to run tediously smoothly. To be boringly uneventful. ‘Business as Usual’ (BAU) is your goal.

There are three fundamental elements that make up your business and that should all be available and working together in depressingly cadent synchronicity: people, offices and systems.

The ability to keep running as a business after any event that disables or inhibits any of these fundamental elements – that stops BAU – is Business Continuity (BC).

To maintain the cringe-worthily efficient running of your business at all times, you need to carefully define how your business is going to react in the face of events that could disrupt your people,... Ler mais

Datacenters nacionais, a melhor solução para alojamento

quarta-feira, 22 de junho de 2016 - 19:37

Seja usando a cloud ou serviços de alojamento tradicional, organizações de todas as dimensões estão a adotar o alojamento das suas aplicações em datacenters externos como forma de se adaptarem às exigências dos ambientes de TI modernos. A proximidade entre o datacenter e o cliente é um aspeto cada vez mais importante na escolha do fornecedor ideal.

A cloud funciona eficazmente como uma abstracção da realidade, mas não podemos esquecer que na sua base existe uma realidade de infra-estruturas de suporte que tornam a cloud possível. As infra-estruturas mais essenciais são os datacenters onde se alojam os sistemas que suportam as plataformas cloud.

Seja em cloud ou utilizando... Ler mais

How to prepare yourself for a cyberattack

sexta-feira, 17 de junho de 2016 - 10:43

A cybersecurity breach costs on average $3.5 million. Typically, it goes undetected for 209 days, and it takes 32 days to respond appropriately once it has been detected [1]. To make matters worse, there is a one million person shortfall in security experts, according to CISCO [2].

So whether or not your organization is prepared for a cyberattack could be the difference between success and failure. Here’s the outline of a plan:

Prepare

The most important part of a plan is the objective.

What part of your business do you want to protect? Is keeping your protecting your reputation the number one priority? Or protecting revenues? Uptime for your customers... Ler mais

How to optimise the performance of your web application

terça-feira, 24 de maio de 2016 - 20:35

There a lots of statistics – most of them probably totally apocryphal – about how much money a slow website can cost you. You only need to know this: slow web applications enrage your users.

Avoid enraging your users by following these tips:

Acceleration

First things first – make sure performance is up to scratch.

Web acceleration and regional distribution

Cache static resources using caching servers distributed across a region or worldwide. This brings those resources closer to your users and reduces the amount of time it takes for a server to receive and deliver a request. If origin web servers are down, regional nodes will deliver... Ler mais

Tranformação Digital: o contra-senso das redes sociais

quinta-feira, 05 de dezembro de 2013 - 18:52

As redes sociais são um dos fenómenos tecnológicos que mais tem contribuído para a transformação digital das gerações. Palavras como Facebook, Hi5, LinkedIn são tão comuns hoje em dia que fazem parte do vocabulário de qualquer cidadão.

No entanto, e apesar do fenómeno global, muitas empresas teimam em ver as redes sociais como um inimigo da sua produtividade. Se é verdade que as redes sociais podem ser um dos grandes motivos de distracção dos colaboradores para (in)justificar a falta de objectividade no cumprimento das suas funções, também é verdade que utilizar essas mesmas redes sociais para promover os bens ou serviços de um empresa, é uma forma de chegar a um público cada vez... Ler mais

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