--- title: Business Insights Cybersecurity Blog by Bitdefender | Graham Cluley description: "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." --- [![](https://businessinsights.bitdefender.com/hubfs/2021/09/logo-white.svg)](https://businessinsights.bitdefender.com/) [![CONTACT AN EXPERT](https://hubspot-no-cache-eu1-prod.s3.amazonaws.com/cta/default/341979/1d8885e9-1179-49b1-a5ec-9c75f5f670dd.png)](https://hubspot-cta-redirect-eu1-prod.s3.amazonaws.com/cta/redirect/341979/1d8885e9-1179-49b1-a5ec-9c75f5f670dd) - [For Home](https://www.bitdefender.com/solutions/) - [For Business](https://www.bitdefender.com/business/) - [Resources](https://www.bitdefender.com/business/resource-library.html) - [Webinars](https://www.bitdefender.com/business/webinars.html) # [BUSINESS INSIGHTS](https://businessinsights.bitdefender.com/) ![](https://businessinsights.bitdefender.com/hubfs/eggstreme-keylogger-malware-with-flag.png) ## [#Enterprise Security #Threat Research #Advanced Persistent Threats ##Featured #Threat Intelligence Sep 17, 2025 EggStreme Malware: Unpacking a New APT Framework Targeting a Philippine Military Company](https://businessinsights.bitdefender.com/eggstreme-fileless-malware-cyberattack-apac?hsLang=en-us) ![](https://businessinsights.bitdefender.com/hubfs/BD_Forrester_Miter_Report_%20Blog_Image%20.jpg) ## [#Endpoint Protection & Management ##Featured Feb 27, 2025 Why Alert Volume Matters: Cutting Through the Noise](https://businessinsights.bitdefender.com/why-alert-volume-matters-cutting-through-the-noise?hsLang=en-us) ![](https://businessinsights.bitdefender.com/hubfs/ShrinkLocker_Ransomware.jpg) ## [#Ransomware #Threat Research ##Featured #Threat Intelligence Nov 13, 2024 ShrinkLocker (+Decryptor): From Friend to Foe, and Back Again](https://businessinsights.bitdefender.com/shrinklocker-decryptor-from-friend-to-foe-and-back-again?hsLang=en-us) ## 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. Find me on: ## Recent Posts Mar 24, 2021 ## [Businesses! Beware The Vengeful IT Contractor!](https://businessinsights.bitdefender.com/businesses-vengeful-it-contractor?hsLang=en-us) Attack wiped out 1200 of a company's 1500 Microsoft Office 365 accounts Always revoke the ... Jan 29, 2021 ## [BEC Scammers Take Advantage of "Out-of-Office" Microsoft 365 Users](https://businessinsights.bitdefender.com/bec-scammers-take-advantage-out-of-office-microsoft-365-users?hsLang=en-us) Fraudsters found a way during the recent holiday season to take advantage of users' "Out of ... Dec 03, 2020 ## [FBI Warns of Hackers Abusing Email Forwarding Rules in Recent Attacks](https://businessinsights.bitdefender.com/fbi-warns-hackers-abusing-email-forwarding-rules-recent-attacks?hsLang=en-us) Remote-working has seen wider use of web-based email services Hackers have compromised ... Nov 06, 2020 ## [Business VOIP Phone Systems Are Being Hacked for Profit Worldwide. Is Yours Secure?](https://businessinsights.bitdefender.com/business-voip-phone-systems-are-being-hacked-for-profit-worldwide.-is-yours-secure?hsLang=en-us) More than 1000 organisations worldwide have had their corporate phone systems hacked by ... Oct 29, 2020 ## [US Hospitals Warned of Threat of Imminent Ransomware Attack](https://businessinsights.bitdefender.com/us-hospitals-warned-of-threat-of-imminent-ransomware-attack?hsLang=en-us) Ryuk ransomware poses a credible and imminent threat to US healthcare industry, claims ... Sep 22, 2020 ## [Does Your Business Have a Well-Known URL for Changing Passwords? It Should!](https://businessinsights.bitdefender.com/business-url-changing-password?hsLang=en-us) Your customers can be helped to change their weak passwords All your company needs to do is ... Jul 27, 2020 ## [Over 1000 Twitter Staff and Contractors Had Access to Internal Tools that Helped Hackers Hijack Accounts](https://businessinsights.bitdefender.com/twitter-staff-and-contractors-had-access-to-internal-tools-that-helped-hackers-hijack-accounts?hsLang=en-us) As Twitter and law enforcement agencies investigate the high profile attack that saw a ... Jun 16, 2020 ## [Credit-Card Skimming Malware Hit Websites As Coronavirus Lockdown Forced Retailers to Close High Street Stores](https://businessinsights.bitdefender.com/credit-card-skimming-malware-hit-websites-as-coronavirus-lockdown-forced-retailers-to-close-high-street-stores?hsLang=en-us) On March 20th, the Claire's accessories retail chain beloved by young girls around the world ... May 18, 2020 ## [Hackers Steal $10M in "Wonderfully Done" fraud from Norway’s State Investment Fund](https://businessinsights.bitdefender.com/hackers-steal-fraud-from-norway-state-investment-fund?hsLang=en-us) Norfund, the Norwegian state-owned investment fund for developing countries, has revealed ... [#Enterprise Security](https://businessinsights.bitdefender.com/topic/enterprise-security?hsLang=en-us) Apr 27, 2020 ## [A GIF Image Could Have Let Hackers Hijack Microsoft Teams at Your Firm](https://businessinsights.bitdefender.com/a-gif-image-could-have-let-hackers-hijack-microsoft-teams-at-your-firm?hsLang=en-us) A critical vulnerability has been patched in the Microsoft Teams work collaboration platform ... Mar 19, 2020 ## [More Business Websites Hit by Credit-card Skimming Malware](https://businessinsights.bitdefender.com/business-websites-hit-credit-card-skimming-malware?hsLang=en-us) In the last few days it has come to light that blender manufacturer NutriBullet and guitar ... Feb 26, 2020 ## [Exaggerated Lion and Business Email Compromise – Don’t Send That Check!](https://businessinsights.bitdefender.com/exaggerated-lion-business-email-compromise?hsLang=en-us) More and more businesses are falling victim to Business Email Compromise, where scammers ... 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