Human Risk Management Blog

Keeping you informed. Keeping you aware.
Stay on top of the latest in security including social 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

Monkeypox Scams Continue to Increase

Attackers are taking advantage of the current news about monkeypox to trick people into clicking on malicious links, Pickr reports. Researchers at Mimecast have spotted a phishing ...

Facebook Phishing Scam Steals Millions of Credentials

Researchers at PIXM have uncovered a major Facebook Messenger phishing scam that’s “potentially impacted hundreds of millions of Facebook users.” More than eight million people have ...

Approaching Ransomware Victims Privately

Researchers at KELA warn that ransomware gangs are increasingly refraining from mentioning their victims’ names after the initial attack, giving the victims a chance to pay up before the ...

Karakurt Adds Irritating Phone Calls to its Crimes

The US Cybersecurity and Infrastructure Security Agency (CISA) and its partners have issued a joint alert on Karakurt, a data theft extortion group that harasses victims’ employees, ...

40% of CSOs say Their Organization is Not Prepared for Cyberattacks as Phishing is the Top Likely Cause of Breaches

A new survey of executives sheds light on how well organizations fared with cyberattacks in the last 12 month as well as what attack vectors are going to increase future breaches.

Old Dog, New Trick: Hackers Use Logons in URLs to Bypass Email Scanners

A new phishing method uses a decades-old special URL format to take advantage of how security solutions and email clients interpret URLs, tricking victims into clicking.

“Five Eyes” Nations Cybersecurity Authorities Issue Warning to MSPs of Stepped-Up Cyberattacks

The world’s five leading cybersecurity authorities have again issued a joint report about an increase in malicious cyber activity targeting managed service providers they expect to ...

The Good, the Bad, and the Necessary State of Cyber Insurance

New data from security vendor Sophos shows that while the presence of cyber insurance coverage has increased, it’s the experiencing of attacks that’s driving the need.

Phishing Attacks Reach an All-Time High, More Than Tripling Attacks in Early 2022

Reaching more than 1 million attacks in a single quarter for the first time, new data on phishing attacks in Q1 of 2022 show an emphasis on impersonation and credential theft.

FTC Warns that Scammers are Turning to Cryptocurrencies

The US Federal Trade Commission (FTC) has warned that people have reported losing over $1 billion in crypto to scams since the beginning of 2021. The vast majority of these losses were ...

What is a Security Tech Stack?

What is a security tech stack? This is a bare-bones quick overview.

Homographic Domain Name Phishing Tactics

Bitdefender warns that Microsoft Office applications are vulnerable to phishing tactics that exploit international domain names (IDNs). Affected applications include Outlook, Word, Excel, ...

[On-Demand Webinar] Understanding the Threat of NFT and Cryptocurrency Cyber Attacks and How to Defend Against Them

A growing number of organizations worldwide are utilizing cryptocurrency for a host of investment, operational, and transactional purposes. Seemingly overnight, technologies like ...

Your KnowBe4 Fresh Content Updates from May 2022

Check out the 26 new pieces of training content added in April, alongside the always fresh content update highlights and new features.

Smishing and Home Delivery

A smishing campaign is impersonating the UK-based delivery company Evri with text messages informing recipients that their package couldn’t be delivered, according to Paul Ducklin at ...

SideWinder Targets Pakistani Entities With Phishing Attacks

The India-aligned APT SideWinder is using a variety of social engineering techniques to target Pakistani government and military entities, according to researchers at Group-IB. The threat ...

U.K.’s National Health Service Becomes the Latest Victim of a Credential Harvesting Phishing Operation

Part of a six-month attack, email accounts on the NHS’ Microsoft 365 instance were compromised, resulting in over 1,100 targeted email attacks used to obtain more credentials.

Phishing Attacks Rise 54% as the Initial Attack Vector Across All Threat Incidents

As cybercriminal groups hone their craft, one analysis shows them shying away from zero-day exploits, use of valid accounts, and third-party vulnerabilities to gain initial access during ...

The Business (and Success) of Ransomware Explained as a Simple Funnel

The rise of Ransomware-as-a-Service has given rise to a number of more successful groups who have their “business” down to a simple exercise of playing the numbers.


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