KnowBe4 Blog KnowBe4’s blog keeps you informed about the latest in human and agent security including social and prompt engineering, ransomware and phishing attacks.
- Extortion Groups are Impersonating Help Desks to Gain Initial Accessby KnowBe4 Team on October 13, 2026 at 8:00 pm
Researchers at ReliaQuest have observed a surge in voice phishing (vishing) and Microsoft Teams phishing over the past several months, particularly from extortion groups like ShinyHunters.
- Report: Ransomware Attacks Involving Data Theft Are Surgingby KnowBe4 Team on October 13, 2026 at 4:00 pm
Ransomware attacks involving data theft have surged by 275% in 2026, according to a new report from Zscaler. Attackers exfiltrated more than 896.2 terabytes of data from victim organizations, more than seven times the amount stolen during the 2023–2024 reporting period.
- CyberheistNews Vol 16 #41 [Heads Up] Attackers Trick Your Employees to Share Fake Calendar Invitesby KnowBe4 Team on October 13, 2026 at 1:30 pm
- [Cybersecurity Awareness Month] Trust, but Verify: Navigating the Era of AI Deepfakesby Dr. Kawin Boonyapredee on October 12, 2026 at 1:16 pm
The digital landscape faces a new and complex challenge: the rise of generative AI. While these tools offer incredible potential for innovation, they also provide malicious actors with sophisticated ways to deceive even the most vigilant users.
- The Rise of Legitimate-Service Phishing: 1 in 10 Phishing Emails Now Comes From a Platform You Trustby KnowBe4 Threat Lab on October 9, 2026 at 7:30 pm
Lead Analysts: Karthikeyan D, Prabhakaran Ravichandhiran, Jeewan Singh Jalal
- Two Systems, One Truth: Unifying Training Records Across SAT and LMSby Nick Gasse on October 8, 2026 at 4:15 pm
Somewhere in your security and compliance stack, there are records that prove your employees completed their security awareness training. But when these records need to serve as evidence, would they actually hold up to scrutiny?
- Warning: Attackers Are Tricking Employees Into Sharing Malicious Calendar Invitesby KnowBe4 Team on October 7, 2026 at 1:00 pm
Researchers at Fortra are tracking a new variant of calendar phishing in which threat actors trick employees into sharing meeting links internally. The attackers pose as prospective customers and contact non-sales employees, asking to be directed to a sales representative in order to discuss a business opportunity. The attacker then sends the employee a meeting link to forward to a sales contact.
- New Phishing Campaign Uses Claude-Themed Luresby KnowBe4 Team on October 6, 2026 at 8:00 pm
A phishing campaign is targeting Google accounts with lures that promise free subscriptions to Anthropic’s Claude Max AI model, Malwarebytes warns.
- Warning: Tech Support Scams Are Abusing Google Adsby KnowBe4 Team on October 6, 2026 at 4:00 pm
Researchers at Netskope are tracking a phishing kit that hijacks users’ browser windows to display fake security alerts. The malicious websites are distributed via Google Ads, and pose as normal online stores. Once a user clicks a link on the page, however, the site will present them with an urgent-looking security warning.
- CyberheistNews Vol 16 #40 Why Microsoft’s Latest Defense-in-Depth Email Benchmark Is So Surprisingby KnowBe4 Team on October 6, 2026 at 1:30 pm



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