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

A Recent Spate Of Spear Phishing Attacks Is Targeting The Financial Industry

Phishing attacks are getting harder to spot, especially as more attackers realize the value of targeted, well-crafted phishing attacks, according to Johannes Ullrich, the dean of research ...

Phishing Attack Targets Humanitarian Organizations

Researchers at Lookout have discovered an ongoing phishing campaign targeting humanitarian non-governmental organizations (NGOs), including UNICEF and the Red Cross. The infrastructure ...

Phishing in Office 365's Pond

Heimdal Security has come across a phishing campaign that uses compromised accounts to target Microsoft users. The attackers use email and social media accounts they’ve already breached ...

Data Breaches Devastate Small Businesses in 2019 with 10 Percent Closing Their Doors

A new report from the National Cyber Security Alliance sheds some light on how prepared small and medium size businesses are and what the aftermath of a data breach really looks like.

FBI Updates Initiative to Protect U.S. Elections from Cyberattacks

FBI has updated and expanded the resources and tools designed to help political campaigns, private businesses, and individuals to better understand and mitigate risks posed by foreign ...

CNN Says "Hack Our Reporter," and White Hat Rachel Tobac *Does*

It’s “disturbingly easy” to steal someone’s personal data using information gleaned from their social media accounts, according to Donie O’Sullivan at CNN. O’Sullivan met with Rachel ...

Credential Phishing With a Masked URL

Cofense warns of a phishing campaign going after credentials for the Stripe online payment platform. The attackers are sending emails purporting to be from Stripe Support, telling the ...

Q3 2019 Top-Clicked Phishing Email Subjects from KnowBe4 [INFOGRAPHIC]

KnowBe4 reports on the top-clicked phishing emails by subject lines each quarter in three different categories: subjects related to social media, general subjects, and 'In the Wild' - we ...

A New Strain of Tech Support Scam in the U.K.

The BBC reports a tech support scam that caused a British man, Doug Varey, to lose £4,000. The scam began when Mr. Varey saw an online ad for twelve years’ worth of computer security ...

Smishing and Carrier Impersonation

While most phishing campaigns involve email, SMS text messages are an ideal alternative for attackers, according to Paul Ducklin at Naked Security. Text messages are brief and uniform in ...

Shipping giant Pitney Bowes hit by ransomware

TechCrunch reported that shipping tech giant Pitney Bowes has confirmed a cyberattack on its systems.

Alexa and Google Home abused to eavesdrop and phish passwords

Ars Technica is on a roll lately with some very good articles! Here is another one that made me go "Yikes!"

Can An Employee's Bad Conscience Be A Vulnerability?

It can be useful to remember that social engineering succeeds much better when its marks are stressed or hurried. That appears to be the case with an ongoing scam campaign that lays its ...

KnowBe4 Wins ComputingSecurity Award: Education and Training Provider of the Year

We are extremely pleased to announce we won the ComputingSecurity Award for Education and Training Provider of the Year. Here is the team accepting the award.

Don’t Fall Victim to Breach Fatigue

People shouldn’t let news of data breaches dissuade them from trying to protect their information, according to security researcher Ray [REDACTED]. On the CyberWire’s Hacking Human ...

An Unusually Vile Bit of Social Engineering

A woman in Wales lost £1,000 to a scammer who posed as a police officer and threatened that she would lose her children if she didn’t pay the money within an hour, Wales Online reports. ...

A Former CIA Officer Shows You How to Make Your Organization a Hard Target

Having spent over a decade as part of the CIA’s Center for Cyber Intelligence and the Counterterrorism Mission Center, Rosa Smothers knows the ins and outs of leading cyber operations ...

Scam Of The Week: Bogus Performance Review as Phishbait

New phishing attacks are imitating performance appraisals in order to steal employees’ credentials, according to IBM SecurityIntelligence. The attackers are posing as HR employees and ...

A Lawyer's Look at "Big Game Phishing"

Ransomware attacks have increasingly been going after high-value data in order to extract larger ransoms from victims, according to the well-known law firm Cooley. This trend was ...


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