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

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.

Phishing Campaign Targets QuickBooks Users

Accounting software provider Intuit has warned of a phishing scam targeting its customers, BleepingComputer reports. The phishing campaign affected users of Intuit’s QuickBooks product, ...

The $44 Million Smishing Problem and How to Not Be a Victim

Consumer Affairs reported on how big of a problem SMS phishing scams have become, and how it's about to get a lot worse. According to a recent FBI report, more than 320,000 Americans were ...

Collaring the (Alleged) Leader of a BEC Gang

A joint operation by INTERPOL and the cybercrime unit of the Nigeria Police Force have concluded a yearlong investigation into the SilverTerrier business email compromise gang by ...

Verizon: Ransomware Involved in 25% of Data Breaches as Credentials and Phishing are Seen as “Key Paths” for Attack Success

With the much-anticipated annual Verizon Data Breach Investigations Report finally released, we get a view of ransomware from the data breach perspective that points to a common weakness ...

That’s Not Actually Elon Musk

Scammers are using deepfake videos of Elon Musk in an attempt to trick people into handing over cryptocurrency, BleepingComputer reports. The scammers set up a phony cryptocurrency ...

New Scam Uses Fraud Support Social Engineering to Take Victims for Thousands of Dollars

A new scam borrows a page from the tech support scams that target older victims telling them potential fraud has been found, offering to “help” solve the issue and ultimately asking for ...

Phishing Scammers Benefit from Shady SEO Practices to Rank Better Than Legitimate Domains

So-called “Black Hat SEO” services have popped up on Dark Web forums bringing advantageous search results to anyone willing to pay a small monthly fee.

New IRS Phishing Scam Uses Fake Notices to Steal Microsoft 365 Credentials

Scammers use an “overdue tax bill” along with a sophisticated and obfuscated javascript-based “invoice” attachment to identify targeted victims, validate credentials, and transmit them ...


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