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

Scam Of The Week: Massive DocuSign Phishing Attacks

DocuSign has admitted they were the victim of a data breach of customer email addresses only that has led to massive phishing attacks which used the exfiltrated DocuSign information. ...

WanaCry Ransomware Was Not The First To Use NSA's ETERNALBLUE

April 14th this year, The Shadow Brokers released a stolen zoo of NSA hacking tools. One of these was ETERNALBLUE, a Windows exploit using an outdated Microsoft network communications ...

CBANC Peer Reviews of KnowBe4

CBANC is the largest online network of verified banking and credit union professionals. They provide answers for every bank and credit union, and allow you to tap into the collective ...

Shadow Brokers Offer New SaaS 0-Day Threat Subscription Model

The mysterious Shadow Brokers – the hackers who leaked the NSA SMB zero-day exploit that powered WanaCry into the world's worst ransomworm – are back, and could cause even more damage. In ...

Are The North Koreans Behind WanaCry Ransomware?

A North Korean hacking group is suspected to be behind WanaCry. Symantec and Kaspersky malware labs are investigating technical evidence that possibly suggests the North’s involvement, ...

Telefonica Victim Of $600,000 Bitcoin Ransomware Attack

Spanish telecoms giant Telefonica was confronted with 85 percent of their systems shut down after ransomware criminals infiltrated its systems demanding $550,000 in Bitcoin. Telefonica is ...

Raising Cyber Security Awareness Training Doesn’t Have to be Boring

You may not be aware that the Wall Street Journal recently created a separate WSJ Pro Cybersecurity newsletter in the form of a regular email with relevant news. Of course I subscribed to ...

Macron Campaign Fought Off Phishing Attacks With Cyberdeception Techniques

Gadi Evron is the Founder and CEO at IT security company Cymmetrica. He wrote a long-ish post on hackernoon (which is powered by Medium). I'm giving you the upshot, but first, what is ...

NEW: Download The "Weak Password Test" Utility

How weak are your user’s passwords? Are they... P@ssw0rd? Verizon's recent Data Breach Report showed that 81% of hacking-related breaches used either stolen and/or weak passwords. ...

CyberheistNews Vol 7 #19 [ALERT] FBI: "CEO Fraud Is Now a 5.3 Billion Email Scam"

CyberheistNews | KnowBe4

How Good Is Antivirus Software At Protecting Itself? 32 Products Tested:

For the third time now, the experts at AV-TEST examined a large number of the security software applications on the market in terms of how well they protect themselves. The focus was on ...

Warren Buffett: "Cyber Security Is The Number One Problem With Mankind".

Business Insider just wrote: "Warren Buffett sees cyber attacks as a bigger threat to humanity than nuclear weapons. "I'm very pessimistic on weapons of mass destruction generally ...

Top 10 Most Dangerous Phishing Attack Of The Week

KnowBe4 gets thousands of phishing attacks reported weekly through our free Phish Alert Button, and we pick the 10 most tricky ones, defang them, and put these into a phishing campaign ...

[ALERT] FBI: "CEO Fraud Is Now 5.3 Billion Email Scam"

There is no better budget ammo for new-school security awareness training than this. Attempts at cyber wire fraud, using spoofed email to impersonate a C-level executive or trusted ...

Ransomware Scum Decide What You Have To Pay By Reading The Economist

Russian organized cybercrime now has a surprising method of determining how much to ask for – the Big Mac index from The Economist. Security firm Recorded Future blogged that in March, a ...

Cyber Security: “We have met the enemy and it is us.”

By Laura DiDio, Principal at ITIC, a research and consulting firm based in the Boston area. “We have met the enemy and it is us.” This quote aptly describes the current state of security ...

Massive Google Doc Phishing Attack Propagated Through Social Engineering

Think Before You Click On Random Google Doc Invitation Links A very convincing Google Docs phishing scheme raced through the internet yesterday, looking like it came from someone you ...

Ransomware Causes 90-day Downtime And 700K Damages For Law Firm

PROVIDENCE, R.I. — Cybercriminals held a Providence law firm hostage for months by encrypting its files and demanding $25,000 in ransom paid in Bitcoin to restore access, according to a ...


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