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

Legacy Cybersecurity Defenses Won’t Keep Pace with New Ransomware and Cryptojacking Threats

Findings from the 2018 Webroot Threat Report Reveal the Increasing Sophistication of Phishing, Malware, and Cryptojacking. Webroot, revealed results from their 2018 annual threat report, ...

The AVCrypt Ransomware Tries To Uninstall Your AV Software

Larry Abrams at Bleepingcomputer reported this strain first: "A new ransomware named AVCrypt has been discovered that tries to uninstall existing security software before it encrypts a ...

City of Atlanta IT Systems Shut Down by SamSam Ransomware. Demand Is $51K To Decrypt

It was all over the major press yesterday. The Mayor of Atlanta, Georgia has confirmed that several local government systems are currently down due to a ransomware infection and said the ...

Why Social Engineering Works And How To Arm Yourself Against "Human Hacking"

Let me share some observations after 7 years of building KnowBe4 from scratch into a 100 million dollar company. We train your employees to recognize social engineering attacks and not ...

MY TAKE: Why ‘cryptojacking’ is spreading faster than ransomware — and may be more insidious

Has there ever been anything more tailor made for hackers than crypto currency? Is anyone surprised that hackers are innovating ways to crack into digital wallets and currency exchanges? ...

UK National Lottery hacked: Watch Out For Phishing Attacks On Millions Of Customers

The UK National Lottery has warned more than 10 million players with online accounts to change their passwords due to a security breach, The Telegraph reported.

How To: Social Engineering A Whole Country During An Election

Check out this fascinating 13 min interview with Christopher Wylie, a former research director at Cambridge Analytica, who had a copy of a dataset with 50 million Facebook profiles. He ...

Five things to know about Russian cyber attacks on the energy grid

Morgan Chalfant at The Hill wrote: "Trump administration officials on Thursday accused the Russian government of staging a multi-year cyberattack campaign against the energy grid and ...

Zenis Ransomware Encrypts Your Data & Deletes Your Backups

Larry Abrams at Bleepingcomputer warned against a new strain called Zenis Ransomware, which was discovered this week by the MalwareHunterTeam "While it is currently not quite clear yet ...

Putin Wins Election: Six More Years Of Criminal Cyber Attacks On The West

Russian President Vladimir Putin won re-election by a wide margin Sunday, strengthening his hand amid an escalating confrontation with the West. Having been 18 years in power, Putin has ...

A Cyber Attack in Saudi Arabia Had a Deadly Goal. Experts Fear Another Try:

Last summer, a petrochemical plant in Saudi Arabia was the target of a cyber attack that investigators believe was designed to sabotage the plant's operations and cause an explosion. Iran ...

Did You Know About The KnowBe4 YouTube Channel? Please Subscribe.

We frequently post awareness videos and other useful public service announcements on our YouTube Channel. We have general videos about the company, news overage, customer testimonials, ...

It’s The Year 2018, And Even Ransomware Is Agile

The malware developers started by publishing the least well-built malware that could possibly work, and improved it as they went along. Given this, and given that this newest version was ...

Microsoft: "Phishing still number one method for cyber-attacks"

Redmond states the obvious: "Hackers are going for the low-hanging fruit." Microsoft has just released their Security Intelligence Report (SIR), its annual cybersecurity summary, and it ...

It's official: Russia is targeting critical American infrastructure with 'malicious cyber attacks'

TNW just wrote: "Russian cyber operatives are attacking critical American infrastructure such as energy grids, nuclear facilities, aviation systems, and water processing plants, according ...

Scam Of The Week: Phishing Madness!

Beware of March Madness, criminal hackers are at it again, after Valentine's Day their phishing agenda has moved to the next topic. They are now spoofing popular March Madness websites, ...

Phishing Is Culprit Behind Vast Majority of Data Exfiltration, Intelligence Official Says

Phil Goldstein at FedTech magazine had some concerning news. "A top federal counterintelligence official says agencies must do more to harden their cybersecurity defenses, even if that ...

FTC Study: Millennials Are The Biggest Victims Of Social Engineering

A report from the FTC found that 40% of adults age 20-29 lost money to fraud, while only 18% of adults over the age of 70 did so, challenging the narrative of older adults falling victim ...


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