KnowBe4 Blog

Keeping you informed. Keeping you aware.
Stay on top of the latest in human and agent security including social and prompt 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

What’s in a (Ransomware Gang) Name? (A Gang by Any Other Name is Just as Dangerous)

The shutting down or even retirement of one ransomware gang seems to result in another popping up. Are these new gangs or just reincarnations of the old one with a new face?

Is Being a Ransomware Affiliate Profitable? The Math Says it is!

While plenty of industry data and new stories confirm ransomware gangs are raking in tens-to-hundreds of thousands per successful attack, is the business of ransomware profitable?

Android Trojan Goes After Facebook Accounts

A new Android Trojan has hijacked more than 10,000 Facebook accounts by stealing session cookies, according to researchers at Zimperium. The malware uses social engineering to trick users ...

Spear Phishing Becomes a Bigger Problem as the Average Organization is Targeted 700 Times a Year

With threat actors honing their trickery skills to craft the perfect email used to fool a would-be victim recipient, new data shows cybercriminals are stepping up their game on a number ...

DarkSide Ransomware Returns as BlackMatter After Sudden Shutdown of Operations

Probably the world’s most notorious ransomware gang disappears completely and subsequently reappears with new branding in an attempt to separate themselves from the types of attacks that ...

Cyber Insurance Rates Climb 30% as Ransomware Attacks, Costs, and Payments are All on the Rise

In a case of “I told you so”, it seems that cyber insurance costs have risen this year as organizations fail to properly protect themselves from rampant ransomware attacks.

Cyber Insurance Industry Wrongly Hedging Its Bets on MFA

Because of ransomware attacks, I have been covering the cybersecurity insurance industry for a few years, including here. I even have a whole chapter dedicated to cybersecurity insurance ...

FTC Warns of Unemployment Insurance Phishing Scheme

The US Federal Trade Commission (FTC) has issued a warning about scams targeting unemployed people via text messages.

Your KnowBe4 Fresh Content Updates from July

With 25 new pieces of training content added this month, check out the always fresh content update highlights and new features from the month of July.