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Author: Graham Cluley

Graham Cluley is an award-winning security blogger, researcher and public speaker. He has been working in the computer security industry since the early 1990s, having been employed by companies such as Sophos, McAfee and Dr Solomon's. He has given talks about computer security for some of the world's largest companies, worked with law enforcement agencies on investigations into hacking groups, and regularly appears on TV and radio explaining computer security threats. Graham Cluley was inducted into the InfoSecurity Europe Hall of Fame in 2011, and was given an honorary mention in the "10 Greatest Britons in IT History" for his contribution as a leading authority in internet security.

All about Virtualization and Cloud Security | Recent Articles:

Businesses! Beware The Vengeful IT Contractor!

Mar 24 by Graham Cluley
  • Attack wiped out 1200 of a company's 1500 Microsoft Office 365 accounts
  • Always revoke the access rights of former employees and contractors
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BEC Scammers Take Advantage of "Out-of-Office" Microsoft 365 Users

Jan 29 by Graham Cluley

Fraudsters found a way during the recent holiday season to take advantage of users' "Out of office" messages to sneak messages into business inboxes.


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FBI Warns of Hackers Abusing Email Forwarding Rules in Recent Attacks

Dec 03 by Graham Cluley
  • Remote-working has seen wider use of web-based email services
  • Hackers have compromised web-based email systems to plant auto-forwarding rules to help them scam businesses
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Business VOIP Phone Systems Are Being Hacked for Profit Worldwide. Is Yours Secure?

Nov 06 by Graham Cluley
  • More than 1000 organisations worldwide have had their corporate phone systems hacked by cybercriminals
  • Attackers can eavesdrop on calls, as well as make money-making calls to premium-rate numbers 
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US Hospitals Warned of Threat of Imminent Ransomware Attack

Oct 29 by Graham Cluley
  • Ryuk ransomware poses a credible and imminent threat to US healthcare industry, claims advisory from the FBI, CISA, and HHS.
  • Hospitals told to harden their defences and ensure they have a mitigation strategy which can be deployed quickly.
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Does Your Business Have a Well-Known URL for Changing Passwords? It Should!

Sep 21 by Graham Cluley
  • Your customers can be helped to change their weak passwords
  • All your company needs to do is make one change to its website
  • Supports new feature coming to Google Chrome next month
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Over 1000 Twitter Staff and Contractors Had Access to Internal Tools that Helped Hackers Hijack Accounts

Jul 27 by Graham Cluley

As Twitter and law enforcement agencies investigate the high profile attack that saw a number of public figures' accounts hacked to spew out a cryptocurrency scam, there is a clear lesson for other businesses to learn.

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Credit-Card Skimming Malware Hit Websites As Coronavirus Lockdown Forced Retailers to Close High Street Stores

Jun 16 by Graham Cluley

On March 20th, the Claire's accessories retail chain beloved by young girls around the world made the sensible decision to close all of its physical stores in response to the Coronavirus Covid-19 pandemic.

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Hackers Steal $10M in "Wonderfully Done" fraud from Norway’s State Investment Fund

May 18 by Graham Cluley

Norfund, the Norwegian state-owned investment fund for developing countries, has revealed that it has been swindled out of US $10,000,000 (approximately 100 million Norwegian Krona) intended for an institution in Cambodia.

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A GIF Image Could Have Let Hackers Hijack Microsoft Teams at Your Firm

Apr 27 by Graham Cluley

A critical vulnerability has been patched in the Microsoft Teams work collaboration platform after security researchers discovered a way in which hackers could compromise accounts and steal data with something as seemingly harmless as an animated .GIF image.

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More Business Websites Hit by Credit-card Skimming Malware

Mar 19 by Graham Cluley

In the last few days it has come to light that blender manufacturer NutriBullet and guitar tuition website Truefire fell foul of hackers who planted Magecart-style malicious code on their sites which went undetected for months, stealing the credit card details and personal information from users.

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Exaggerated Lion and Business Email Compromise – Don’t Send That Check!

Feb 26 by Graham Cluley

More and more businesses are falling victim to Business Email Compromise, where scammers fool companies into transferring money into the bank accounts of criminals.

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