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

The Importance of Identifying and Focusing on the Malicious Behavior

Identifying malicious behavior is a more effective long-term strategy than trying to block individual malicious actors, according to Johnathan Hunt, Vice President of Security at GitLab. ...

Visit KnowBe4 at Black Hat USA 2020 - Virtual Event

Are you attending (the 100% virtual) Black Hat USA 2020? Be sure to stop by the KnowBe4 booth August 5-6th to find out how to secure your last line of defense: USERS.

[Interpol Alert] LockBit Ransomware Attacks Affect American SMB's

If you thought LockBit ransomware has gone away, think again. According to a recent report from Interpol, the impact of COVID-19 on cybercrime has taken shape and LockBit operators are ...

Explosion of Zoom Meeting Phishing Attacks Over Spring and Summer of 2020 and Targeting Office365 and Outlook Credentials

Researchers at INKY have observed an “explosion” of Zoom-themed phishing attacks over the Spring and Summer of 2020. Most of the attacks are aimed at stealing credentials to services like ...

Hacked High-Profile Twitter Accounts Are Used to Promote a Cryptocurrency Scam

Using the theme of partnering with a made up COVID-19 non-profit, the latest hack on twitter allowed some pretty prominent accounts to be used as pawns in a scam that netted $120K.

New U.K. Phishing Scam uses a £400 Tax Cut as Bait

Pretending to be the U.K. Governments’ Digital Service Team, this latest COVID-related phishing attack seeks to con victims out of their credit card details.

Netflix Phishing Attack Hides Behind a Functional CAPTCHA Page to Avoid Detection

In an interesting twist, cybercriminals utilize a well-known technology to keep security solutions from identifying a “failed payment” email as being fraudulent.

Is it a Quiz Scam? Is it Bad? Is it Back With a Vengeance?

The answer to all three questions would seem to be, "yes." Quiz scams have become widespread over the past year, but they’ve gone largely unremarked, researchers at Akamai have found. ...

July Fresh Content Updates from KnowBe4: Including New Recommended Training Suggestions in the ModStore

Here are a few important fresh content and feature updates to share with you for the month of July.