Human Risk Management Blog

Keeping you informed. Keeping you aware.
Stay on top of the latest in security including social engineering, ransomware and phishing attacks.

Stu Sjouwerman

Founder and Executive Chairman

Stu Sjouwerman (pronounced “shower-man”) is the Founder and Executive Chairman of KnowBe4, Inc., which hosts the world’s most popular integrated security awareness training and simulated phishing platform, with over 54,000 organization customers and more than 50 million users. A serial entrepreneur and data security expert with 30 years in the IT industry, Stu was the co-founder of Inc. 500 company Sunbelt Software, a multiple award-winning anti-malware software company that was acquired in 2010.


Recent Posts

Ransomware Gangs Are Now Cold-Calling Victims If They Restore From Backups Without Paying

Catalin Cimpanu at ZDNet reported on another evil escalation in ransomware extortion tactics. In attempts to put pressure on victims, some ransomware gangs are now cold-calling victims on ...

Exploits Leveraging Excel 4.0 Macros Increase as Organizations Continue to Rely on this Legacy Technology

Despite being nearly 30 years old, Excel’s very functional macro technology appears to be a little too functional, as attackers have stepped up its use to advance cyberattacks.

BEC Scam Litigation Demonstrates How Your Company Can Be Out $500,000

The case of Arrow Truck Sales Inc. v. Top Quality Truck & Equipment tells a familiar tale, but provides insight into how the law interprets cases and who’s at fault.

New “Back to Work” HR-Themed Phishing Scam Works to Steal Internal User Credentials

Using a fake internal memo from HR, per-user custom-named email attachments, SharePoint Online, and a realistic-looking HR form, this phishing attack has all the ingredients to trick your ...

Think Tanks Targeted by APT Actors

The US Cybersecurity and Infrastructure Security Agency (CISA) and the FBI have issued a joint advisory warning that nation-state advanced persistent threat (APT) actors are targeting US ...

How Are Credential-Theft Phishing Websites Avoiding Detection? They Just Invert the Website Background

Sometimes the easiest solution is the best solution. And in the case of phishing attacks intent of stealing credentials using a fake logon page, it appears that background inversion does ...

Number of Phishing Websites Double and Unique Phishing Campaigns Triple in Q3

New data shows the bad guys have been working diligently to step up their game on both the front and back end of phishing attacks, despite still being mid-pandemic.

Maze Ransomware Group Retires (Retires!), Leaving a Gap in the Ransomware Marketplace

The news last month of the “retirement” of Maze should be a warning to organizations wondering what ransomware will come next and how much worse will it be.

KnowBe4 Fresh Content Updates from November: Including A New Holiday Training Resource Kit

Here are important fresh content updates and new features to share with you for the month of November.

Average Ransomware Payment Significantly Increases Risk

The average ransomware payout has increased by 178% over the past year, according to researchers at Atlas VPN. In Q4 2019, the payments averaged $84,000. By Q3 2020, the average payment ...

[HEADS UP] FBI Warns US Companies of BEC Scammers

The Federal Bureau Investigation is issuing warnings to US companies that are taking advantage of email auto-forwarding. If successful, this would fall right into the trap of a business ...

South African Post Office Issues Warning on Postal Phishing Attack

The South African Post Office recently issued a warning about a phishing attack. The post office advised everyone to delete the email immediately.

Zoom Impersonation a New Variant of Familiar Phishbait

Zoom-themed phishing attacks have spiked since the start of the pandemic, the Better Business Bureau (BBB) warns. Attackers adapted quickly earlier this year when a large portion of ...

Giving Tuesday Means an Influx of Charity Scams

Giving Tuesday is a great idea for organizations and people to give back to people in need, especially during the COVID-19 pandemic. However, this causes concern for an increase in ...

Fake Zoom Invite Leads to one Australian Company's Downfall

We've previously written blog posts to be cautious of suspicious Zoom meeting links, and we even reported a huge increase in phishing attacks using Zoom of August this year. The heads-up ...

Is the Secret to Stopping Cyberattacks Making Users "Phishing Aware"?

The sheer volume of successful phishing attacks indicates that security solutions – at very least – aren’t stopping all attacks. So how does security awareness training help top attacks ...

Phishing Attacks in the U.K. Rise by 73% During Pandemic Months as Vishing and Smishing Attacks Also Increase

Cybercriminals have taken full advantage of COVID-19 by launching themed phishing attacks in previously unseen numbers targeting both individuals and businesses.

Egregor Ransomware Finds a New Way to Inform You That You’re a Victim of Cyberattack: Printers

Unlike the traditional methods of notifying victim organizations by simply taking over a computer or providing a “readme” text file, this new method has some devilish benefits.

Journalists Need Phishing Awareness, Too

All types of journalists need to be wary of phishing and other social engineering attacks, according to Jacob Granger, writing at Journalism.co.uk. Granger quotes digital security expert ...


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