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

New Mount Ransomware Joins the Millionaires Club Demanding Seven Figure Ransoms

With ransoms as high as $2 Million, the cybercriminal group behind this new family of ransomware is setting the bar pretty high, all while being the “new kid on the block”.

61% of Successful Phishing Attacks Against Government Organizations Result in Full Compromise of Credentials

Phishing remains the top primary attack vector that keeps on giving to cybercriminals, as new data highlights the victories cybercriminals are enjoying at your organization’s expense.

Cybersecurity Awareness Month Weekly Tip: Current Phishing Threats

Each week during Cybersecurity Awareness Month, we’re going to be sharing in-depth weekly cybersecurity tips from our evangelists to help your users make smarter security decisions and ...

An Autopsy of a $15 Million Heist

A company in the US lost $15 million in a two-month-long business email compromise scam, BleepingComputer reports. Researchers at Mitiga who investigated the attack told BleepingComputer ...

New Office 365 Phishing Attack Checks Your Stolen Credentials in Real-Time

Nothing says the bad guys are intent on stealing credentials like testing them while you participate in their phishing attack so they can verify the validity before letting you off the ...

USPS and FedEx Phishing Attack Texts Flood Mobile Phones

Taking a page from traditional phishing scams that seek to use broadly-accepted messages and send them to everyone, last month officially brought SMiShing to the cybersecurity forefront.

Gartner Recognizes KnowBe4 as a Representative Vendor for Security Awareness Training Program Platforms

We believe, as the world's largest security awareness training platform, this recognition validates the success of our ability to carry out our mission. We enable organizations and their ...

The Most Dangerous Celebrity of 2020...

...Is Anna Kendrick, according to researchers at McAfee. The researchers analyzed Internet search results for celebrities and found that Kendrick’s search results (through no fault of her ...

The Pesky Password Problem: Policies That Help You Gain the Upper Hand

What really makes a “strong” password? And why are your end-users tortured with them in the first place? How do hackers crack your passwords with ease? And what can/should you do about ...

Scammers are using Black Lives Matter as Phishbait

A phishing campaign is using Black Lives Matter-themed phishing lures to trick people into installing malware, Yahoo reports. Adam Levin from Cyberscout told Yahoo that the phishing ...