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

[Scam Of The Week] Don't Fall For This Tricky: “Start your 2020 with a gift from us”

Paul Ducklin at Naked Security warned us about a scam that just surfaced and promises a gift by courier from overseas where the other person hasn’t told you what they’re sending – the ...

REvil Ransomware: "Pay Us One Way Or The Other!"

The Wall Street Journal and Bleeping Computer reported that Travelex, a foreign-currency exchange company, was hit by the ReVil/Sodinokibi actors on New Year's Eve and that its network ...

Cybercriminal Offers a “How To” Guide for Robbing Banks; Uses Cayman National Bank as the Example

This latest document from notorious hacker Phineas Phisher, along with a leaked report from PwC, shows how easy it is for a bank to be hacked and defrauded.

Phishing Attacks Impersonating Canadian Banks Work So Well, the Campaign Has Been Running for Two Years

As part of a massive ongoing phishing campaign, the same group of attackers leverage hundreds of lookalike phishing websites to steal from unsuspecting banking customers. Security ...

Bahrain’s National Oil Company Hit by Iranian "DustMan" Data Wiper

The Bahrain National Oil Company was attacked by Iranian state-sponsored hackers implanting a destructive data wiper nicknamed "DustMan."

New Office 365 Phishing Attack Targets OAuth Apps Instead of Credentials

Trying to steal your username and password is so “yesterday.” The 2020 Hacker is now leveraging Office 365 OAuth APIs to gain control over user mailboxes with phishing tactics.

The Better the Phishing Protection Gets, the More Sophisticated Phishing Attacks Are Getting

Microsoft’s review of how phishing has evolved over the last year highlights some of the great lengths attackers will go to in order to avoid being detected as a phishing campaign.

Scammer Who Tricked Facebook and Google Out of $120 Million Gets 5 Years in Jail

The Lithuanian hacker who ran the most notorious, simplest, and most lucrative email-based social engineering fraud scam has been brought to justice and will be serving time and paying ...

Of Course, Scammers Exploit Fears of Iranian Hacking

A new phishing campaign is attempting to frighten people into handing over their credentials by claiming Microsoft was hacked by Iran, BleepingComputer reports. The campaign is ...

JudicialWatch: "Epidemic of Government Employees Watching Porn on Taxpayer Time"

I'd like to point at a type of security behavior that is enormously risky. Judicial Watch just released a post that's a major heads-up for anyone: "An epidemic of federal employees ...