John E Dunn

John Dunn is one of the co-founders of Techworld, following a spell working for Tornado Insider, the European magazine for tech startups. He started in IT journalism as technical editor of Personal Computer Magazine, before progressing to become editor of Network World (formerly LAN Magazine) and Network Week before helping to set up Techworld Insider. He has also freelanced for a number of technical publications in the technology, science and business fields.

Best free DNS services 2019

Linux malware threats you should know about

Linux malware threats you should know about

CrossRat Image by iStock Suspected to have been developed by the Lebanese ‘Dark Caracal’ hacking group (PDF) and first exposed in a joint research report by Lookout and the Electronic Frontier...

The worst types of ransomware attacks

The worst types of ransomware attacks

NotPetya Image by iStock The NotPetya ransomware was based on the same EternalBlue SMB exploit as WannaCry combined with EternalRomance, also stolen from the NSA. NotPetya works its way into a...

Ransomware explained - What is ransomware and how can it be stopped?

Ransomware is going after larger firms. These attacks could be about to get a lot more serious

Krebs DDoS aftermath: industry in shock at size, depth and complexity of attack

Were cybercriminals advertising a new service or just plain angry?

Cisco wants to be a software company? Why customers should look beyond the hype

Cisco wants to be a software company? Why customers should look beyond the hype

Looking beyond the 'every company is a software company' sales pitch

When networks wear out: how London Capital Group embraced SDN and virtualisation

“It isn’t often you get the chance to do this.”

Zepto ransomware – how to protect yourself against the latest extortion menace

How to cope with Zepto and how stop it coming back

Blockchains and the public sector: Distributed ledger technology reaches the G-Cloud

Isle of Man startup Credits has become the first to offer blockchain DLT to Britain's public sector

LastPass: How to securely patch the world's most popular password manager

Is market-leading password manager LastPass secure and, if not how can it be updated?

DDoS extortion 2016: more Wizard of Oz con than deadly threat?

"Some people without brains do an awful lot of talking."

Latest massive DDoS attack suggests criminals are plotting long campaigns

DDoS is moving from individual attacks to whole campaigns

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