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

SOC teams spend nearly a quarter of their day handling suspicious emails

Jeremy Fuchs at Avanan just blogged about a new report they released. It revealed some surprising results about the time SOC teams have to spend investigating suspicious emails reported ...

Hackers are Winning the Cyberwar, Largely Because They Target People

Researchers at HackNotice have found that the number of data breaches is increasing, while the number of breach notifications is declining, SecurityWeek reports. HackNotice analyzed ...

Using Legitimate Services to Bypass Phishing Protections

Researchers at Abnormal Security have identified two techniques that attackers are using to bypass email security filters. The first tactic takes advantage of the fact that Microsoft ...

[On-Demand Webinar] A Master Class on IT Security: Roger Grimes Teaches Ransomware Mitigation

Cyber-criminals have become thoughtful about ransomware attacks; taking time to maximize your organization’s potential damage and their payoff. Protecting your network from this growing ...

UK Research and Innovation Becomes Next Victim Hit with Ransomware

UK Research and Innovation (UKRI) has been hit by a ransomware attack that impacted two of its services, BleepingComputer reports. The UK government department said it’s still unsure if ...

[Heads Up] Email Phishing Is Now the Top Ransomware Attack Vector

New data shows that pushback from the ransomware victim “market” may be influencing just how much cybercriminals are asking for as ransom and are being paid.

Trickbot is Targeting the Legal Sector

Researchers at Menlo Security warn of an ongoing Trickbot campaign targeting the legal and insurance industries. Trickbot is a notorious remote access Trojan that was in the crosshairs of ...

KnowBe4 Fresh Content Updates from January: Including 'The Inside Man' Season 3 Official Trailer

Here are important fresh content updates and new features to share with you that happened in the month of January.

[HEADS UP] New Phishing Kit Spotted on Over 700 Domains

A cybercriminal gang has recently developed a new phishing kit named LogoKit on several domains. LogoKit changes logos and text in real-time in order to adapt to the targeted victims.