Stu Sjouwerman

Chief Executive Officer & President

Stu Sjouwerman (pronounced “shower-man”) is the founder and CEO 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.

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Yahoo Hacker Arrested And Admits Working for The Russians

Nov 29, 2017 9:42:02 AM By Stu Sjouwerman

The Kazakhstan-born Canadian citizen Karim Baratov (22) has pleaded guilty to massive 2014 Yahoo hack that affected three billion accounts. He admitted that he generally spearphished his ...

Stolen Passwords Of FTSE 100 Employees Tripled In 2017

Nov 29, 2017 7:21:09 AM By Stu Sjouwerman

The Financial Times Stock Exchange 100 share index is an average of share prices in the 100 largest, most actively traded companies on the London Stock Exchange. IT security vendor ...

Surface Web vs. Deep Web vs. Dark Web: Differences Explained

Nov 28, 2017 7:35:00 AM By Stu Sjouwerman

These three terms are often a source of confusion, especially in connection with cybercrime and where that comes from. If you think that search engines like Google (there are more!) know ...

CyberheistNews Vol 7 #47 Scam of the Week: Warn Your Users About Uber Phishing Attacks

Nov 27, 2017 9:42:01 AM By Stu Sjouwerman

Baffling FBI silence about Russian phishing attacks on US officials

Nov 27, 2017 6:59:05 AM By Stu Sjouwerman

WASHINGTON – The Associated Press revealed a baffling FBI silence about spear phishing attacks by Russian hackers on US officials like the former head of cybersecurity for the U.S. Air ...

Something funny happened on the way to repealing Net Neutrality rules...

Nov 26, 2017 1:00:51 PM By Stu Sjouwerman

Sorry to interrupt your Thanksgiving, but this one has had me laughing all afternoon. You might have seen the news that the Trump-era FCC is planning to repeal the Net Neutrality rules ...

Massive Phishing Attack On Businesses with Evil New Ransomware Strain

Nov 25, 2017 11:02:08 AM By Stu Sjouwerman

The Scarab ransomware strain is updated again and spreads via Necurs botnet in a massive 12.5 million campaign, mostly targeting .com domains. Scarab was spotted June 2017 for the first ...

Spam was nearly dead, then it became an essential tool for crime and came roaring back

Nov 25, 2017 7:59:50 AM By Stu Sjouwerman

John Christian at TheOutline wrote a post that made me take notice because it neatly summarized the current state of affairs and confirms our own experience: spam has morphed and is back ...

URGENT - If IT and Marketing are not freaking out about GDPR compliance, you are not paying attention

Nov 24, 2017 3:04:00 PM By Stu Sjouwerman

I found an article about GDPR compliance written by the fine folks of HubSpot, which we use ourselves here at KnowBe4 use for marketing automation. We have customers in Europe, so our ...

Uber Total Loss: 57 Million Records Stolen But Data Breach Was Hidden For A Year

Nov 22, 2017 7:37:46 AM By Stu Sjouwerman

Oh boy. Uber is known for pushing the limits of the law and has dozens of lawsuits pending against it, but this one went too far and now comes the reckoning. Bloomberg was first to report ...

[ALERT] Zombie Remote Access Phishing Trojan Kills Antivirus

Nov 20, 2017 10:00:00 AM By Stu Sjouwerman

Almost two years ago we took note of two different write-ups on the Adwind (aka AlienSpy) remote access trojan (RAT), one by McAfee and the other by Fidelis Security. Those pieces caught ...

CyberheistNews Vol 7 #45 [HEADS-UP] Skeleton in the Closet: 17-Year Old MS Office Flaw Allows Malware Install When User Opens File

Nov 20, 2017 9:59:43 AM By Stu Sjouwerman

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Stu Sjouwerman

Books

Recent Posts

Yahoo Hacker Arrested And Admits Working for The Russians

Stolen Passwords Of FTSE 100 Employees Tripled In 2017

Surface Web vs. Deep Web vs. Dark Web: Differences Explained

CyberheistNews Vol 7 #47 Scam of the Week: Warn Your Users About Uber Phishing Attacks

Baffling FBI silence about Russian phishing attacks on US officials

Something funny happened on the way to repealing Net Neutrality rules...

Massive Phishing Attack On Businesses with Evil New Ransomware Strain

Spam was nearly dead, then it became an essential tool for crime and came roaring back

URGENT - If IT and Marketing are not freaking out about GDPR compliance, you are not paying attention

Uber Total Loss: 57 Million Records Stolen But Data Breach Was Hidden For A Year

[ALERT] Zombie Remote Access Phishing Trojan Kills Antivirus

CyberheistNews Vol 7 #45 [HEADS-UP] Skeleton in the Closet: 17-Year Old MS Office Flaw Allows Malware Install When User Opens File

We're Still Not Ready for GDPR? What is Wrong With Us?

‘Grey’s Anatomy’ Fall Finale Cliffhanger: Hospital Shut Down By Ransomware Attack

The future of cyberwar: Weaponised ransomware, IoT attacks and a new arms race

Ransomware recovery methods: What does the NIST suggest?

Antivirus Software Doing The Complete Opposite And Spreading Malware

Skeleton in the closet: 17-year old MS office flaw allows malware install when user opens file

[On-Demand Webinar] Six Cybersecurity Trends Organizations Need to Watch for in 2018

Watch Out For Black Newsjacking: FOSCAM camera poisoned search results

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