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

Bad news: 43% of login attempts 'malicious' Good news: Er, umm...

The Register in the UK reported: "An extraordinary 43 per cent of all attempted online account logins are malicious, Akamai claims in its latest internet security report. "Credential ...

Now *HERE* Is A Devious Combo pretexting / vishing / SMS Social Engineering Attack!

Someone on Reddit described how he was the victim of a very sophisticated social engineering attack. Wow, this is crafty. This is the story!: "I have different passwords for every website ...

PHISHING SCHEMES NET HACKERS MILLIONS OF DOLLARS FROM FORTUNE 500

IBM has uncovered sophisticated CEO Fraud campaigns—aka Business Email Compromise—which are successfully targeting Fortune 500 companies. On Wednesday, researchers from IBM's X-Force ...

Cryptojacking Scripts And Phishing Pages Could Soon Invade Your Word Documents

Let's open that doc file and watch the Matrix again. Catalin Cimpanu at Bleepingcomputer had the scoop on this concerning news: "Cryptojacking scripts that mine Monero via JavaScript code ...

[Heads-up] The May 2018 GDPR Deadline May Fuel New Extortion Attempts

Trend Micro has released its annual security roundup, and it shows several interesting trends that will likely continue into 2018. There is bad news and worse news, with a little bit of ...

Global Cyber Security Risk Perception: Highest Management Priorities

Few organizations are highly confident in their ability to manage the risk of a cyber-attack, despite viewing cybersecurity as a top risk management priority, according to a survey ...

Scam Of The Week: Lowlife Scum Exploits Recent Florida Parkland School Shooting

Just when you think they cannot sink any lower, criminal internet scum are now exploiting the Parkland tragedy in Florida. Unfortunately, from this spot I have been warning about these ...

Edward Snowden returns to U.S.! Oops, nope, it's a phishing scam

Bradley Barth at SCMedia nailed it when he wrote: "No, NSA whistleblower and U.S. fugitive Edward Snowden did not just purchase a 2 terabyte storage plan for iCloud, nor has he moved back ...

Trusted Sites Often Deliver Phishing Attacks: Study

Ray Schultz at MediaPost had a great summary of some troublesome news: "Some of the world’s most popular websites are also the most dangerous when in comes to phishing attacks, according ...

New Research: Number of Microsoft vulnerabilities continues to go up over the years

The number of Microsoft vulnerabilities has more than doubled in the last five years, according to the fifth annual Microsoft Vulnerabilities Report from Avecto. The global security ...