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

Iranian Hacker Group APT34 Use New ‘Tonedeaf’ Malware over LinkedIn in Latest Phishing Campaign

Targeting several key industries, this new campaign likely seeks to aid the Iranian government with information that could be of use to further Iran’s economic and security goals.

[Heads-up] Nationwide Bomb Threat Extortion Phishing Attack Campaign With A Twist

IN OFFICES AND universities all across the country Thursday, the same threat appeared in email inboxes: Pay $20,000 worth of bitcoin, or a bomb will detonate in your building. Police ...

Two Puerto Rico Hospitals Hit With Ransomware That Encrypts 520,000 Patient Records

The two hospitals were hit by ransomware infections and are one of the largest data breaches reported by the U.S. Department of Health. This particular incident encrypted all kinds of ...

Reuters: "BlackRock in talks to take over Cofense after U.S. security concerns - sources"

(Reuters) July 28, 2019 — "BlackRock Inc (BLK.N), an investor in Cofense Inc, is in advanced talks to take over the U.S. cyber security firm, after a U.S. national security panel asked ...

Schools In Both The US And UK Victim Of Recent Phishing Attacks

A number of educational institutions have recently fallen victim to cyberattacks, highlighting the need for increased awareness training for students and faculty. SC Media UK has ...

NSA Launches Cybersecurity Arm To Defend The U.S. From Foreign Adversaries

Kate O'Flaherty wrote in Forbes: "The National Security Agency has announced its intention to create a cybersecurity directorate this fall in a bid to defend the U.S. against foreign ...

Here Is Some Great InfoSec Budget Ammo From UBS

A KnowBe4 employee forwarded this PDF to me. There is a very interesting point in here: your cybersecurity practices affect the valuation of your company. That should get the attention of ...

Louisiana Declares Cybersecurity State of Emergency

A series of ransomware attacks on school district systems leads the governor to declare the state's first cybersecurity state of emergency.

OSINT – a Hacker’s First Asset in Targeted Attacks

Before a cybercriminal wants to engage in a targeted attack against a particular organization or individual, they’d like to know a few things first. That’s where OSINT comes into play.

New Study Finds Employees Pose the Greatest Cybersecurity Risk

While historically being seen as an organization’s greatest asset, the latest report from the analyst firm Ponemon cites humans as the weakest link.

Netflix's New "The Great Hack" Reminds Us -- If you Don't Pay For the Product You *Are* The Product

Last night, Netflix premiered “The Great Hack” which is based on the Cambridge Analytica scandal. They reminded us of the golden expression: “If you don't pay for the product you are the ...

Romanian Cybercriminals Sentenced for Phishing Campaign

Our friends at Phishlabs wrote: "This week, the Department of Justice for the U.S. Attorney’s Office for the Northern District of Georgia announced the final of three sentences to be ...

BEC = “Because it’s Easy Cash” Scammers Trick Employees Into Giving Away Customer Info

Business Email Compromise—also known as CEO Fraud—scammers are now targeting a company's customers using a new indirect attack method designed to collect information on future scam ...

This Year, Phishing Causes Losses of $17,700 per minute And Ransomware Attacks Will Cost $22,184 Per Minute

Global losses to cybercrime total $1.5 trillion per year, which amounts to $2.9 million per minute, a new report by RiskIQ shows. Some of the largest companies are losing $25 each minute ...

A Phishing Campaign Evades Email Gateways via WeTransfer

A phishing campaign is abusing the legitimate file hosting site WeTransfer to get malicious links through email filters, according to Jake Longden at Cofense. The attackers send real ...

80% of Organizations Don’t Use DMARC Making Them Susceptible to Email Spoofing

DMARC’s ability to confirm a sending domain’s identity seems like a no-brainer, and yet most organizations aren’t taking advantage of this protective service to stop phishing attacks.

Ransomware Attacks Costs Nearly Triple in 2019 to over $36K Per Attack

The latest data from ransomware recovery vendor, Coveware, outlines the current state of the cost, duration, and recovery rate of ransomware attacks today.

HoneyTrap, The Oldest In The World Now As Iranian Catphish on LinkedIn

Iranian state-sponsored hackers are increasing their targeting of civilian targets amid escalating tensions between the US and Iran, according to Zak Doffman at Forbes. Doffman cites a ...

Q2 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 ...

KnowBe4 Achieves Highest and Furthest Overall Position for Its Ability to Execute and Completeness of Vision in the 2019 Gartner Magic Quadrant for Security Awareness CBT

We are excited to announce that KnowBe4 has achieved the highest and furthest overall position as a Leader for its ability to execute and completeness of vision in the 2019 Magic Quadrant ...


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