Human Risk Management Blog

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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

8 Signs You Have Been Hacked

[caption id="" align="aligncenter" width="580" caption="8 Signs You Have Been Hacked"][/caption]

Security Is Not Only Training It Is Culture

We all went to school, but how would you do if you were asked to retake your finals? Neither would I. Education fades unless it is regularly reinforced. And even the reinforcement is ...

Bank Sues Customer Over ACH/Wire Fraud

[caption id="" align="alignleft" width="180" caption="Bank Sues Customer"][/caption] Tracy Kitten at BankInfo Security reported on this: "In another legal wrangling over liability linked ...

VIDEO: The new 90-second Kevin Mitnick Security Awareness Training Elevator Pitch

[caption id="" align="alignleft" width="455" caption="Kevin Mitnick Security Awareness Training 90-second Video"][/caption] July 2012, KnowBe4 officially released Kevin Mitnick Security ...

I Was Interviewed On TV Thursday

[caption id="" align="aligncenter" width="500" caption="Stu TV Interview"][/caption] Cyber threats reported by U.S. energy companies, public water districts and other infrastructure ...

Released! Kevin Mitnick Security Awareness Training

[caption id="" align="alignleft" width="460" caption="Released! Kevin Mitnick Security Awareness Training"][/caption] I am super excited to officially announce we have released the new ...

Court Ruling Could Be Boon to Cyberheist Victims

[caption id="" align="alignleft" width="310" caption="Court Ruling Boon To Cyberheist Victims"][/caption] BrianKrebs reported some very good news. A decision handed down by a federal ...

Cybercriminals Sniff Out Vulnerable Firms

[caption id="" align="aligncenter" width="560" caption="Small Firms Cyberheist Victims"][/caption] I could have written this headline myself. But I didn't, it was Sarah Needleman at the ...

Cisco Cloud Calamity

[caption id="" align="alignleft" width="350" caption="Cisco Cloud Calamity"][/caption] Cisco's Linksys marketing division got themselves soaking wet. Customers that own the Linksys E2700, ...

Training Fragmentation Causes Knowledge Gap

[caption id="" align="alignleft" width="350" caption="Training Fragmentation"][/caption] More and more, you see training companies promote their security awareness training products as ...

FBI: High-tech Espionage Costs 13 Billlion

Michael Cooney over at NetworkWorld came up with a number: 13. "Driven by the general ease of stealing electronically stored data and the reality of growing global businesses, US ...

Scam Of The Week Payroll Phish

The nakedsecurity blog over at Sophos highlighted a new phishing scam that would be good to alert your employees about. The bad guys are pretending to be payroll processing company ADP. ...

Malware Metastasizes

A few days ago I wrote about a 60 million Euro cyberheist. I have been digging into this a bit more, as it's the most advanced attack yet. Cybercrime is not revolutionary, it clearly ...

KnowBe4 Philosophy

[caption id="" align="alignright" width="250" caption="KnowBe4 Philosophy"][/caption] We are happy to go against the grain. We’re not a massive developer that turns out bloatware year ...

Bank Settles With California Cyberheist Victim

Finally, a positive outcome in a cyberheist lawsuit. Brian Krebs reported that a Professional Business Bank settled with a Village View Escrow Inc, a California cyberheist victim. A ...

60 Million Euro Stolen In Biggest Cyberheist Ever

[caption id="" align="alignleft" width="390" caption="60 million Cyberheist"][/caption] This is exactly what I have been warning against in my book cyberheist. McAfee and Guardian ...

Need to protect a critical machine? Use Whitelisting, not Antivirus

[caption id="" align="alignleft" width="290" caption="2002 Good vs. Bad"][/caption] And now a mainstream antivirus vendor is saying this too. First of all, I have no dog in this fight, ...

Why pill pushing spam pays off

Brian Krebs is on a roll. Here is why pill pushing spam pays off. "Consumer demand for cheap prescription drugs sold through spam-advertised Web sites shows no sign of abating, according ...

OMG - I did not know it was THIS horrible.

More from Brian Krebs's astounding blog post today. "As the chart I compiled above indicates, attackers are switching the lure or spoofed brand quite often, but popular choices include ...

A Closer Look: Email-Based Ransomware Attacks

With the increase of email phishing attacks being the primary attack vector, ransomware payments have risen to 60%, it's important to take a closer look at email-based ransomware attacks.


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