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

1,000+ SEC Filings Show Ransomware an On-Going Risk for Public Companies

As public companies seek to improve their cybersecurity posture, they also work to comply with SEC formal guidance to disclose cybersecurity risk, highlighting ransomware as a key factor.

Medical Suppliers Targeted With Agent Tesla Infostealer

Researchers at Fortinet have identified a spear phishing campaign targeting medical suppliers with COVID-19-themed emails. The emails contain choppy grammar, but the message is clear ...

PerSwaysion: Convincing Executives to Act Against Their Own Interest

Researchers at Group-IB have discovered a sophisticated spear phishing campaign that’s targeted executives at more than 150 companies around the world since mid-2019. The researchers have ...

GitHub is the Latest Target of Social Engineering Phishing Attacks

Using simple alert-style email notices, scammers look to steal credentials to gain access to development code, intellectual property, and project details.

Zelle Users Continue to be the Target of Scams Intent on Fraud

The wildly popular payment app is a cybercriminals playground where users are easy prey for money laundering, scams, mules, and just plain old fraud.

Half of all Breaches Start with Phishing and Social Engineering

New data shows successful attacks on internal networks, cloud environments, and POS systems all are very susceptible to this common attack vector.

The Need for Pandemic Financial Relief Spurs a Phishing Attack Impersonating the U.S. Federal Reserve

Scammers use realistic-looking emails and a well-designed website under the guise of the Paycheck Protection Program to trick victims into providing banking credentials.

April Content Update: Including New Work from Home Training Module from Twist & Shout

Here are a few important updates and news to share with you from the past month.

Scammers Can Use Recent Transactions to Trick You

KrebsOnSecurity reports that scammers are using caller ID spoofing to impersonate their victims, and then socially engineering victims’ banks into divulging information about recent ...