Geoffrey Wenger

Email Geoffrey at geoff@jenisystems.com

Geoffrey has decades of hands-on work across IT, software development, and cybersecurity, and he brings clear, technical insight to every article. His experience includes building and maintaining secure networks, writing and reviewing production code, hardening endpoints, and responding to real incidents. He has led projects that span Microsoft 365 and Google Workspace administration, identity and access control, and cloud adoption with a focus on reliability and risk reduction. He holds two bachelor’s degrees in IT, a business degree, and a master’s in Cybersecurity and Information Assurance. His writing turns complex systems into actionable steps that help readers fix issues fast and strengthen security over time.

Articles published:

Secure DNS network connecting home and business devices through encrypted DNS traffic, protective filtering, trusted resolvers, and blocked malicious connections.

Secure DNS for Safer Browsing and Privacy at Home and in Business

Most website visits depend on a process you never see. Before a browser can reach a site,[…]

Telecom cybersecurity risks with carrier networks, mobile security, and FCC rollback concerns

FCC Cybersecurity Rollback Raises Telecom Network Security Risks

The FCC’s rollback of telecom cybersecurity rules has raised a hard question for businesses and everyday users:[…]

Home router targeted by proxy malware and cybercriminal activity linked to fraud, DDoS attacks, ransomware, and account abuse

How An Old Router Can Secretly Turn Into Criminal Infrastructure

A hacked router does not always look hacked. Your Wi-Fi may still work, movies may stream, and[…]

Mac network troubleshooting with Wi-Fi, DNS, DHCP, VPN, captive portal, and router diagnostics

Why Your Mac Has Wi-Fi but Still Cannot Connect to the Internet

Mac network problems can look simple, but the real cause is often hiding behind a normal Wi-Fi[…]

Home router security setup with Wi-Fi devices on a protected smart home network

Secure Your Home Router and Protect Every Connected Device

Your home router is the front door for every laptop, phone, camera, printer, and smart device you[…]

Asus AiCloud router security warning with firmware update protection and blocked cyberattack traffic

Asus AiCloud Router Flaw Puts Home Networks At Serious Risk

Asus pushed new firmware after researchers uncovered an authentication bypass impacting AiCloud-enabled routers. Attackers can chain path[…]

D-Link DIR-878 Wi-Fi router with glowing security shield and red warning triangle symbolizing unpatched remote code execution vulnerabilities

New D-Link DIR-878 Router RCE Flaws Put Users At Risk

The D-Link DIR-878 router has three new remote command execution flaws that leave every hardware revision exposed.[…]