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

Aggressive New Tech Support Social Engineering Scam

The Tech Support Scams are getting worse by the month. Here is a horror story that was just shared today. I suggest you read it, and keep alert for Red Flags like these! "My dad almost ...

CyberheistNews Vol 5 #28 Scam Of The Week: Internet Capacity Warning

CyberheistNews Vol #5 #28 July 14, 2015 Scam Of The Week: Internet Capacity Warning OK, so here is the latest scam, possibly fueled by the recent news that we have run out of IPv4 ...

U.K.-hedge fund loses a million dollars in social engineering attack

A British hedgefund lost more than a million dollars in a social engineering attack on their Chief Financial Officer Thomas Meston, and there is an expensive court case going on because ...

OPM: 'Victim-as-a-Service' Provider

Unconscionable. I would even say callous and criminal negligence, all on the current administration's watch, of the highly confidential and very private information of the people working ...

Scam Of The Week: Internet Capacity Warning

OK, so here is the latest scam of the week, possibly fueled by the recent news that we have run out of IPv4 addresses in the U.S. Employees receive an email which claims to be from the ...

A New, Innovative Ransomware Attack Spreads Using Google Drive

An Eastern European cybercrime gang has started a new TorrentLocker ransomware campaign where whole websites of energy companies, government organizations and large enterprises are being ...

Spear Phishing Attack Results In $5.3 Million Bitcoin Cyberheist

"Newly leaked, confidential documents have revealed details into a cyberattack aimed at Bitstamp, a company that fundamentally deals as a cryptocurrency trader, according to a report in ...

CyberheistNews Vol 5 #27 Scam Of The Week: Payment By Facebook Friend

CyberheistNews Vol #5 #27 July 7, 2015 Scam Of The Week: Payment By Facebook Friend As of last Tuesday, Facebook has switched on person-to-person (P2P) payments for users in the US to ...

Woman conned out of £50,000 in shrewd spearphishing scam

In a variation of the "CEO Fraud", spearphishing is getting more up close and personal. Read this story and apply the lesson learned in your own life before you lose your life savings. ...

Criminal Hackers Steal Your Database? See You In Court

Jim Flynn wrote: "Helping to demonstrate that every cloud has a silver lining if you look hard enough, hacking has proven to be of great benefit to the legal profession. That's because ...

What KnowBe4 Customers Say About Us July 3, 105

Hi Stu, "We're happy with the product. Getting good feedback from users who've gone through the programme and my management is highly impressed with the quality of the information given. ...

OPM Phishing Attack: "Your Data Was Hacked, How To Protect Yourself"

And yes, as we predicted, there are now phishing attacks that mimic Office of Personnel Management (OPM) data breach notifications. The breach has expanded to millions more records. It ...

Scam Of The Week: Payment By Facebook Friend

As of last Tuesday, Facebook has switched on person-to-person (P2P) payments for users in the US to "instant-message" money to their friends, using the debit cards connected to their bank ...

Confidence In Antivirus Falls To All-time Low

Bromium is a company with a new antivirus mousetrap, so it will try to make old mousetraps look, well... old. However, they do point out correctly that traditional antivirus is starting ...

CyberheistNews Vol 5 #26 FBI Alert: Latest CryptoWall Ransomware Damage More Than $18 Million

CyberheistNews Vol #5 #26 June 30, 2015 FBI Alert: Latest CryptoWall Ransomware Damage More Than $18 Million The latest version 3.0 of CryptoWall, descendant of the infamous CryptoLocker, ...

Patch Flash NOW Or Get Infected With CryptoWall

It is now urgent to patch any Adobe Flash Player machines in your network. Why? There is an exploit kit called Magnitude that now uses a recently patched Flash zero-day vulnerability. An ...

FBI Alert: Latest CryptoWall Ransomware Damage More Than $18 Million

The latest version 3.0 of CryptoWall, descendant of the infamous CryptoLocker, is the most advanced and most damaging ransomware in the wild at the moment, specifically targeting U.S. ...

World's Most Famous Hacker Kevin Mitnick: IoT Is Exploitable

Clad in a blue suit and conservative necktie, KnowBe4's Chief Hacking Officer Kevin Mitnick no longer looks the part of the precocious teen who started hacking into computer systems while ...

CyberheistNews Vol 5 #25 Scam Of The Week: Spoofed CEO Money Transfer Request

CyberheistNews Vol #5 #25 June 23, 2015 Scam Of The Week: Spoofed CEO Money Transfer Request Heads-up, there is a real wave of this scam going on at the moment. I would copy and paste ...

Magazine publisher loses $1.5M in phishing scam

Cyber-criminals have social engineered magazine publisher Bonnier Group out of at least $1.5m after hacking the CEO’s email. The total damage could be as much as $3.0 million. Bonnier ...


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