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How Does Ransomware Work? Part 1

July 6th, 2015

Let’s take a look at how ransomware works. In some stages of the operational cycle ransomware runs much like any other malware which may find its way onto your systems. In other stages ransomware has introduced completely new areas of operating for cybercriminals. The first few stages of the ransomware cycle use the tried-and-true methods cybercriminals […]



By: - Independent Computer Security Analyst

@gcluley

Mystery surrounds “hack” that grounded 1400 air passengers – Updated

June 23rd, 2015

1400 passengers are stranded at Poland’s busiest airport after what the airline describes as an “IT attack”.

But what actually happened in shrouded in mystery.



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Ransomware – To Pay or Not To Pay?

June 22nd, 2015

Let me paint a scene for you. You’re sitting at your desk between meetings. You’re working on a PowerPoint for a customer meeting tomorrow, and you’re waiting for an email back from a co-worker. You have another meeting in an hour, which gives you just enough time to hone this presentation. It’s been 15 well-crafted […]



By: - Independent Computer Security Analyst

@gcluley

LinkedIn trumpets the success of its private bug bounty

June 19th, 2015

It’s all very well having a bug bounty program, argues LinkedIn, but how is your organisation going to cope if it is bombarded with hundreds of meaningless and useless reports, that your security team cannot act upon?



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Ransomware Is the New Kidnapping

June 15th, 2015

In the pre-internet days, ransoms typically involved only prominent, wealthy people and their families. Kidnapping people for ransom is mostly a thing of the past nowadays. It’s an old-fashioned crime. You can’t really get away with it anymore. Kidnapping files, however, is rapidly becoming more popular. Intel/McAfee reports a 155% rise in ransomware in Q4 […]



By: - Independent Computer Security Analyst

@gcluley

All US .gov websites ordered to be HTTPS-only by the end of next year

June 10th, 2015

Good news for privacy.

The US government’s CIO has officially announced that all .gov websites must be only available via encrypted HTTPS connections by the end of 2016.



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Ransomware 101

June 8th, 2015

This is the first in a series of posts about ransomware. In this post and over the next several weeks I’ll discuss what ransomware is, who the victims are, give some details on a couple of specific types, how to protect your organization, and what to do when your systems have been taken captive. You’ve […]



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You May Already Know Your Next Hacker

June 1st, 2015

Over the last couple of weeks I’ve seen a pattern of companies frustrating an individual to the point where the person gives up trying to communicate with the company and hacks them in a major way instead. I guess you could call it Revenge Hacking. In each case, the company was communicating with the person […]



By: - Independent Computer Security Analyst

@gcluley

If lax security leads to a data breach, your insurer may not pay out

May 29th, 2015

When a healthcare provider suffered an embarrassing data breach, it hoped it could recoup some of its losses by claiming on insurance.

But it turns out it wasn’t as simple as that…



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How Does Your Organization Handle Vulnerability Disclosures?

May 25th, 2015

You’ve probably heard the idiom “No good deed goes unpunished.” It looks like that phrase will survive even the cyber age. There have a been few news stories about how vulnerability disclosures were handled, or mishandled. Some made me laugh, some made me cringe. When IT Security professionals find a vulnerability, they know what to […]


By: - Independent Computer Security Analyst

@gcluley

Logjam vulnerability – what you need to know

May 20th, 2015

Researchers discover a new attack against encrypted communications on the internet.


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Buying Exploits for Zero-Day Vulnerabilities

May 18th, 2015

A few weeks ago a story appeared on Slashdot about a new marketplace on the Dark Web called The Real Deal. Since it’s already in the press, hopefully there’s no harm in describing it here. I do risk being banned from the site for discussing it, but I’m optimistic they’ll see it as free publicity rather […]


By: - Independent Computer Security Analyst

@gcluley

Is your graphics card hiding a rootkit or keylogger?

May 12th, 2015

Why would malicious code want to run entirely on the GPU? And should we be concerned?


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Hijacking Websites for Hacktivism (part 4)

May 4th, 2015

This is the next is a series of posts covering website hijacking. See parts 1, 2, and 3 if you’re just joining in. I’ve covered several different types of possible attacks. I’ve settled on attacking public DNS servers to hijack political campaign websites, sending their traffic to my own website which reveals the truth about […]


By: - Independent Computer Security Analyst

@gcluley

SendGrid email service hacked, customers told to reset passwords and DKIM keys

April 27th, 2015

Most of us know about bulk email – it’s the blanket term which can be used in relation to the mountain of legitimate newsletter subscriptions and marketing emails we may have clogging up our inboxes, as well as the unsolicited junk messages, scams and phishing campaigns that spammers abuse us with. What is less well […]



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